Number of compositions of n with exactly nine descents.

Terms

a(0) =55a(1) =856a(2) =7752a(3) =52203a(4) =288439a(5) =1377331a(6) =5868260a(7) =22792116a(8) =81944050a(9) =275852636a(10) =877202199a(11) =2653544633a(12) =7679263550a(13) =21360356057a(14) =57331068005a(15) =148970797526a(16) =375812977280a(17) =922708833921