Total number of even blocks in all partitions of n-set.
A102287
Total number of even blocks in all partitions of n-set.
Terms
- a(0) =0a(1) =1a(2) =3a(3) =13a(4) =55a(5) =256a(6) =1274a(7) =6791a(8) =38553a(9) =232171a(10) =1477355a(11) =9898780a(12) =69621864a(13) =512585529a(14) =3940556611a(15) =31560327945a(16) =262805569159
External references
- oeis: A102287