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A218600
Partial sums of A213709.
20
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.
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
KEYWORD
nonn
AUTHOR
Antti Karttunen, Nov 05 2012
EXTENSIONS
a(29)-a(36) from Alois P. Heinz, Jul 03 2022
STATUS
approved