Total number of fixed points in all heapable permutations of length n.
A388139
Total number of fixed points in all heapable permutations of length n.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =10a(4) =35a(5) =150a(6) =763a(7) =4538a(8) =31099a(9) =240998a(10) =2086861a(11) =19995764a(12) =210178054a(13) =2405810764a(14) =29802767812a(15) =397387258762
External references
- oeis: A388139