Number of -6..6 arrays of n elements with first through fourth differences also in -6..6.
A202662
Number of -6..6 arrays of n elements with first through fourth differences also in -6..6.
Terms
- a(0) =13a(1) =127a(2) =967a(3) =5509a(4) =23425a(5) =101567a(6) =438177a(7) =1895197a(8) =8198571a(9) =35463355a(10) =153408903a(11) =663650521a(12) =2870932567a(13) =12419542739a(14) =53726653631a(15) =232420358051
External references
- oeis: A202662