Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-5,...,5}.
A239555
Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-5,...,5}.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =8a(6) =15a(7) =29a(8) =56a(9) =106a(10) =201a(11) =388a(12) =743a(13) =1421a(14) =2727a(15) =5233a(16) =10034a(17) =19248a(18) =36925a(19) =70836a(20) =135885a(21) =260684a(22) =500101a(23) =959400a(24) =1840522a(25) =3530904a(26) =6773757a(27) =12994934a(28) =24929791a(29) =47825908
External references
- oeis: A239555