Number of (binary) heaps of length n whose element set is a subset of [n].
A373450
Number of (binary) heaps of length n whose element set is a subset of [n].
Terms
- a(0) =1a(1) =1a(2) =3a(3) =14a(4) =65a(5) =448a(6) =3136a(7) =32028a(8) =251922a(9) =2891801a(10) =30684797a(11) =464651863a(12) =5434037232a(13) =92246217970
External references
- oeis: A373450