Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-8,...,8}.
A239558
Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-8,...,8}.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =8a(6) =16a(7) =32a(8) =63a(9) =124a(10) =245a(11) =485a(12) =957a(13) =1887a(14) =3732a(15) =7375a(16) =14571a(17) =28802a(18) =56920a(19) =112488a(20) =222325a(21) =439404a(22) =868428a(23) =1716358a(24) =3392208a(25) =6704360a(26) =13250484a(27) =26188250a(28) =51758453a(29) =102295355
External references
- oeis: A239558