Doubly restricted composition numbers: number of compositions of [n^2/2] into exactly n positive integers each strictly less than n.
A077046
Doubly restricted composition numbers: number of compositions of [n^2/2] into exactly n positive integers each strictly less than n.
Terms
- a(0) =0a(1) =1a(2) =3a(3) =19a(4) =155a(5) =1751a(6) =24017a(7) =398567a(8) =7635987a(9) =167729959a(10) =4123838279a(11) =112835748609
External references
- oeis: A077046