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A339330 Sums of antidiagonals in A283681. 1
1, 4, 9, 16, 27, 41, 57, 77, 103, 133, 167, 205, 249, 301, 358, 418, 486, 560, 642, 734, 832, 932, 1038, 1156, 1282, 1418, 1566, 1721, 1880, 2043, 2215, 2403, 2601, 2811, 3035, 3267, 3505, 3751, 4003, 4267, 4551, 4847, 5157, 5483, 5818, 6157, 6508, 6871, 7242 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..49.

Rémy Sigrist, PARI program for A339330

FORMULA

a(n) = Sum_{k = 1..n} k * A283681(n+1-k).

PROG

(PARI) See Links section.

CROSSREFS

Cf. A283681.

Sequence in context: A237589 A138981 A138993 * A008019 A029896 A301198

Adjacent sequences: A339327 A339328 A339329 * A339331 A339332 A339333

KEYWORD

nonn

AUTHOR

Rémy Sigrist, Nov 30 2020

STATUS

approved

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Last modified December 9 00:20 EST 2022. Contains 358698 sequences. (Running on oeis4.)