Number of compositions of n whose differences of all degrees > 1 are nonzero.
A325875
Number of compositions of n whose differences of all degrees > 1 are nonzero.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =7a(5) =13a(6) =20a(7) =38a(8) =69a(9) =129a(10) =222a(11) =407a(12) =726a(13) =1313a(14) =2318a(15) =4146a(16) =7432a(17) =13296a(18) =23759a(19) =42458a(20) =75714
External references
- oeis: A325875