Number of series-reduced rooted trees whose leaves are non-singleton integer partitions whose multiset union is an integer partition of n with no 1's.
A320294
Number of series-reduced rooted trees whose leaves are non-singleton integer partitions whose multiset union is an integer partition of n with no 1's.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =3a(6) =3a(7) =7a(8) =8a(9) =15a(10) =19a(11) =37a(12) =48a(13) =87a(14) =126a(15) =227a(16) =342a(17) =611a(18) =964a(19) =1719a(20) =2806a(21) =4975a(22) =8327a(23) =14782a(24) =25157a(25) =44609a(26) =76972a(27) =136622a(28) =237987a(29) =422881
External references
- oeis: A320294