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A343272 Partial sums of A170842. 0
1, 3, 6, 8, 15, 27, 36, 38, 45, 57, 70, 90, 135, 189, 216, 218, 225, 237, 250, 270, 315, 369, 400, 420, 465, 527, 606, 756, 999, 1215, 1296, 1298, 1305, 1317, 1330, 1350, 1395, 1449, 1480, 1500, 1545, 1607, 1686, 1836, 2079, 2295, 2380, 2400, 2445, 2507, 2586, 2736, 2979, 3203 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..53.

FORMULA

G.f.: 1/(1-x) * Product_{k>=1} (1 + 2*x^(2^k-1) + 3*x^(2^k)). - Alois P. Heinz, Apr 10 2021

CROSSREFS

Cf. A170842, A187220.

Sequence in context: A165298 A352507 A117148 * A305595 A320687 A340494

Adjacent sequences: A343269 A343270 A343271 * A343273 A343274 A343275

KEYWORD

nonn

AUTHOR

Omar E. Pol, Apr 10 2021

STATUS

approved

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Last modified November 27 10:50 EST 2022. Contains 358381 sequences. (Running on oeis4.)