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A303853 Number of pairs (lambda,mu) of partitions lambda of n and and mu of three with mu <= lambda (by diagram containment). 2
3, 7, 13, 23, 35, 54, 78, 112, 154, 215, 287, 387, 510, 673, 871, 1133, 1448, 1857, 2352, 2980, 3739, 4697, 5846, 7278, 9000, 11122, 13663, 16778, 20492, 25011, 30393, 36892, 44611, 53891, 64871, 78003, 93513, 111970, 133705, 159476, 189737, 225477, 267354 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Alois P. Heinz, Table of n, a(n) for n = 3..1000

Eric Weisstein's World of Mathematics, Ferrers Diagram

Wikipedia, Ferrers diagram

CROSSREFS

Column k=3 of A259478.

Sequence in context: A124129 A101301 A103116 * A075321 A258030 A164787

Adjacent sequences:  A303850 A303851 A303852 * A303854 A303855 A303856

KEYWORD

nonn

AUTHOR

Alois P. Heinz, May 01 2018

STATUS

approved

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Last modified January 16 06:59 EST 2019. Contains 319188 sequences. (Running on oeis4.)