Number A(n,k) of sequences with k copies each of 1,2,...,n avoiding absolute differences between adjacent elements larger than one; square array A(n,k), n>=0, k>=0, read by antidiagonals.
A331562
Number A(n,k) of sequences with k copies each of 1,2,...,n avoiding absolute differences between adjacent elements larger than one; square array A(n,k), n>=0, k>=0, read by antidiagonals.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =2a(9) =1a(10) =1a(11) =1a(12) =6a(13) =2a(14) =1a(15) =1a(16) =1a(17) =20a(18) =12a(19) =2a(20) =1a(21) =1a(22) =1a(23) =70a(24) =92a(25) =26a(26) =2a(27) =1a(28) =1a(29) =1
External references
- oeis: A331562