Number of defective (binary) heaps on n elements where four ancestor-successor pairs do not have the correct order.
A324065
Number of defective (binary) heaps on n elements where four ancestor-successor pairs do not have the correct order.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =3a(5) =24a(6) =120a(7) =720a(8) =4200a(9) =24192a(10) =151200a(11) =1056000a(12) =7286400a(13) =54743040a(14) =442041600a(15) =3997593600a(16) =29081052000a(17) =244365721600
External references
- oeis: A324065