Number of -7..7 arrays of n elements with first through fourth differences also in -7..7.
A202663
Number of -7..7 arrays of n elements with first through fourth differences also in -7..7.
Terms
- a(0) =15a(1) =169a(2) =1483a(3) =9739a(4) =47713a(5) =238453a(6) =1186107a(7) =5914721a(8) =29498237a(9) =147102833a(10) =733637717a(11) =3658966867a(12) =18248551605a(13) =91011704581a(14) =453908063159
External references
- oeis: A202663