Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-10,...,10}.

A239560

Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-10,...,10}.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =8a(6) =16a(7) =32a(8) =64a(9) =127a(10) =252a(11) =501a(12) =997a(13) =1982a(14) =3940a(15) =7832a(16) =15575a(17) =30972a(18) =61590a(19) =122481a(20) =243567a(21) =484363a(22) =963221a(23) =1915501a(24) =3809243a(25) =7575217a(26) =15064391a(27) =29957679a(28) =59575090a(29) =118473530

External references