Number of series-reduced rooted trees whose leaves are strict integer partitions whose multiset union is an integer partition of n.
A320175
Number of series-reduced rooted trees whose leaves are strict integer partitions whose multiset union is an integer partition of n.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =13a(4) =37a(5) =120a(6) =395a(7) =1381a(8) =4931a(9) =18074a(10) =67287a(11) =254387a(12) =972559a(13) =3756315a(14) =14629237a(15) =57395490a(16) =226613217a(17) =899773355a(18) =3590349661a(19) =14390323014a(20) =57907783039a(21) =233867667197a(22) =947601928915
External references
- oeis: A320175