Number of defective (binary) heaps on n elements with exactly two defects.
A323958
Number of defective (binary) heaps on n elements with exactly two defects.
Terms
- a(0) =0a(1) =2a(2) =9a(3) =48a(4) =250a(5) =1200a(6) =5922a(7) =34160a(8) =185460a(9) =1201920a(10) =6837600a(11) =49680576a(12) =314028000a(13) =2611065600a(14) =17913619680a(15) =162456519680
External references
- oeis: A323958