What algorithm is used to compute a “bit that is two places to left of least significant bit in binary expansion of $n$” in the OEIS sequence A086483?

score 147 · Answer 6 · 2026-03-30 14:01:08

147

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score 486 · Answer 7 · 2022-02-25 13:19:14

486

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score 39 · Answer 8 · 2022-03-02 11:44:00

39

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score 80 · Answer 9 · 2022-03-07 08:39:28

$0<a_1<a_2<\cdots<a_k$ satisfy $\bigoplus\limits_{i=1}^ka_i = 2^n-1$ ($\oplus$ represents bitwise or) prove |config number of k is even - odd| =1

score 334 · Answer 10 · 2022-03-12 03:18:58

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score 159 · Answer 11 · 2022-03-15 13:22:36

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score 227 · Answer 14 · 2022-04-01 18:25:36

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score 51 · Answer 15 · 2022-04-02 17:14:47

51

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What is this set representation of binary numbers called, when the set elements are positions where the digit are 1?

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What algorithm is used to compute a “bit that is two places to left of least significant bit in binary expansion of $n$” in the OEIS sequence A086483?

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