Number of (binary) heaps where n is the sum of their length and the size of the element set [k].
A373632
Number of (binary) heaps where n is the sum of their length and the size of the element set [k].
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =2a(5) =4a(6) =8a(7) =17a(8) =41a(9) =103a(10) =282a(11) =792a(12) =2239a(13) =6680a(14) =21143a(15) =70647a(16) =245357a(17) =871255a(18) =3202552a(19) =12334046a(20) =49635128a(21) =205403510a(22) =856780528a(23) =3601169551a(24) =15507530896a(25) =69267381313a(26) =320345619798
External references
- oeis: A373632