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A090539 Total number of parts equal to 1 in all plane partitions of n. 4
0, 1, 4, 11, 28, 62, 137, 278, 561, 1080, 2051, 3778, 6885, 12255, 21589, 37409, 64160, 108612, 182234, 302461, 497997, 812579, 1316225, 2115608, 3378239, 5357855, 8447086, 13237631, 20632630, 31985504, 49339795, 75738099, 115731636, 176055280, 266697522 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..50

MATHEMATICA

Table[Count[Flatten[planepartitions[k]], 1], {k, 17}]

PROG

(PARI) A090539(n)=A092288(n, 1) \\ M. F. Hasler, Sep 26 2018

CROSSREFS

Column k=1 of A092288.

Cf. A066633, A000219, A091298.

Sequence in context: A239031 A289217 A329141 * A262050 A293628 A113478

Adjacent sequences:  A090536 A090537 A090538 * A090540 A090541 A090542

KEYWORD

nonn

AUTHOR

Wouter Meeussen, Feb 01 2004

EXTENSIONS

a(18)-a(27) from Vaclav Kotesovec, May 05 2018

a(28)-a(34) from Alois P. Heinz, Sep 24 2018

STATUS

approved

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Last modified August 14 10:47 EDT 2020. Contains 336480 sequences. (Running on oeis4.)