A218600 Partial sums of A213709.

0, 1, 2, 4, 7, 12, 21, 38, 68, 122, 220, 399, 729, 1343, 2493, 4655, 8727, 16405, 30901, 58319, 110298, 209098, 397407, 757296, 1446945, 2771951, 5323982, 10250571, 19780122, 38243220, 74058513, 143592684, 278661808, 541110611, 1051158027, 2042539460, 3969857205

Offset

0,3

Comments

a(n) tells the position of (2^n)-1 in A179016.

Links

Table of n, a(n) for n=0..36.

Prog

(Scheme with Antti Karttunen's Intseq-library): (define A218600 (PARTIALSUMS 1 0 A213709))

Crossrefs

a(n) = A213710(n)-1. A179016(a(n))=(2^n)-1. Cf. A213711.

Sequence in context: A255062 A307058 A307060 * A000709 A054161 A023433

Adjacent sequences: A218597 A218598 A218599 * A218601 A218602 A218603

Keyword

nonn

Author

Antti Karttunen, Nov 05 2012

Extensions

a(29)-a(36) from Alois P. Heinz, Jul 03 2022

Status

approved