Number of 3-time self-crossing partitions on n nodes.
A287222
Number of 3-time self-crossing partitions on n nodes.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =2a(5) =16a(6) =164a(7) =944a(8) =4386a(9) =22240a(10) =83066a(11) =398132
External references
- oeis: A287222