A303854 Number of pairs (lambda,mu) of partitions lambda of n and mu of four with mu <= lambda (by diagram containment).

5, 12, 25, 42, 70, 105, 158, 223, 319, 434, 595, 793, 1059, 1382, 1811, 2329, 3003, 3819, 4858, 6114, 7701, 9607, 11984, 14843, 18370, 22594, 27774, 33953, 41473, 50430, 61250, 74102, 89555, 107842, 129715, 155550, 186298, 222508, 265444, 315864, 375415

Offset: 4

Author

Alois P. Heinz, May 01 2018

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 4..1000
• Eric Weisstein's World of Mathematics, Ferrers Diagram
• Wikipedia, Ferrers diagram

Crossrefs

Column k=4 of A259478.