Number of positive increasing integer sequences of length n with Gilbreath transform (that is, the diagonal of leading successive absolute differences) given by {1,1,1,1,1,...}.
A080839
Number of positive increasing integer sequences of length n with Gilbreath transform (that is, the diagonal of leading successive absolute differences) given by {1,1,1,1,1,...}.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =6a(5) =27a(6) =180a(7) =1786a(8) =26094a(9) =559127a(10) =17535396a(11) =804131875a(12) =53833201737
External references
- oeis: A080839