A369900 - OEIS

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A369900

a(n) is twice the sum of the first n binary digits of e minus n.

2

0, 1, 0, 1, 0, 1, 2, 1, 2, 3, 4, 5, 6, 7, 6, 5, 4, 3, 4, 3, 4, 3, 4, 3, 2, 1, 2, 1, 2, 3, 2, 1, 0, 1, 0, 1, 0, -1, -2, -1, -2, -1, -2, -1, 0, 1, 0, 1, 2, 1, 2, 1, 0, 1, 0, 1, 0, 1, 0, -1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 3, 4, 5, 6, 5, 6, 7, 8, 7, 6, 5, 6, 5, 6

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,7

COMMENTS

Partial differences give A004593, when -1 is replaced by 0.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..20000

FORMULA

a(0) = 0, a(n) = a(n-1) + 2*A004593(n+1) - 1 for n>=1.

CROSSREFS

Cf. A001113, A004593, A166006.

Sequence in context: A058886 A236858 A220661 * A137846 A080915 A239484

Adjacent sequences: A369897 A369898 A369899 * A369901 A369902 A369903

KEYWORD

sign,look,base

AUTHOR

Alois P. Heinz, Feb 05 2024

STATUS

approved