Number of unordered pairs (p,q) of partitions of n such that the set of parts in q is equal to the set of parts in p.
A369696
Number of unordered pairs (p,q) of partitions of n such that the set of parts in q is equal to the set of parts in p.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =8a(6) =12a(7) =19a(8) =27a(9) =42a(10) =61a(11) =91a(12) =130a(13) =192a(14) =271a(15) =401a(16) =556a(17) =802a(18) =1126a(19) =1597a(20) =2217a(21) =3132a(22) =4315a(23) =6003a(24) =8257a(25) =11370a(26) =15527a(27) =21251a(28) =28798a(29) =39043
External references
- oeis: A369696