Number of (strict) compositions of n whose differences of all degrees are nonzero.

A325851

Number of (strict) compositions of n whose differences of all degrees are nonzero.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =4a(5) =7a(6) =12a(7) =21a(8) =35a(9) =58a(10) =102a(11) =171a(12) =284a(13) =485a(14) =819a(15) =1355a(16) =2301a(17) =3884a(18) =6528a(19) =10983a(20) =18380a(21) =30824a(22) =51851

External references