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15
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Proving of an E.G.F

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#exponential-function #oeis
52
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Examples of palindromic polynomial sequences

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#sequences-and-series #combinatorics #polynomials #oeis
437
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Dodecahedral number visualization

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#geometry #3d #polyhedra #visualization #oeis
182
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What is the number of integers divisible by either 2, 3, or 5 from the integers 1 to $n+1$?

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#combinatorics #closed-form #oeis
129
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Orientable necklaces and complements

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#combinatorics #oeis #necklace-and-bracelets
469
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Online encyclopedia of maths and physics constants?

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#constants #oeis
192
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How to find connection between sequence and formula?

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#sequences-and-series #oeis
106
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OEIS A227133 (square-free grid colourings)

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#coloring #oeis
339
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Power towers of $2$ and $3$ - looking for a proof

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#sequences-and-series #algorithms #conjectures #power-towers #oeis
702
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formula for the number of perfect squares mod $N$

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#elementary-number-theory #multiplicative-function #oeis
184
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Conjectured diagonal Ramsey numbers

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#reference-request #graph-theory #conjectures #ramsey-theory #oeis
205
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Lists of negative discriminants by class group?

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#number-theory #reference-request #algebraic-number-theory #oeis #quadratic-integer-rings
364
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How does a number correspond to a sound when listening to an OEIS sequence?

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#music-theory #oeis
62
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What is the solution of this recursion, that's defined in terms of a sum, but with this $1$ odd twist?

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#recurrence-relations #functional-equations #closed-form #oeis
130
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Does OEIS sequence A059046 contain any odd squares $u^2$, with $\omega(u) \geq 2$?

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#elementary-number-theory #divisor-sum #oeis

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