Number of ways to fill a Young diagram with positive integers summing to n such that the rows are weakly decreasing and the columns are weakly increasing.
A323580
Number of ways to fill a Young diagram with positive integers summing to n such that the rows are weakly decreasing and the columns are weakly increasing.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =6a(4) =13a(5) =23a(6) =45a(7) =76a(8) =136a(9) =225a(10) =381a(11) =611a(12) =1001a(13) =1570a(14) =2489a(15) =3842a(16) =5948a(17) =9022a(18) =13714a(19) =20501a(20) =30649a(21) =45262a(22) =66721a(23) =97393a(24) =141888a(25) =204993
External references
- oeis: A323580