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A304990
Squares of number of partitions into distinct parts.
5
1, 1, 1, 4, 4, 9, 16, 25, 36, 64, 100, 144, 225, 324, 484, 729, 1024, 1444, 2116, 2916, 4096, 5776, 7921, 10816, 14884, 20164, 27225, 36864, 49284, 65536, 87616, 115600, 152100, 200704, 262144, 342225, 446224, 577600, 746496, 964324, 1238769, 1587600
OFFSET
0,4
FORMULA
a(n) ~ exp(2*Pi*sqrt(n/3)) / (16*sqrt(3)*n^(3/2)).
a(n) = A000009(n)^2.
MATHEMATICA
Table[PartitionsQ[n]^2, {n, 0, 50}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, May 23 2018
STATUS
approved