Total number of occurrences of k in the (signed) displacement sets of all permutations of [n+k] divided by k!; square array A(n,k), n>=0, k>=0, read by antidiagonals.
A324362
Total number of occurrences of k in the (signed) displacement sets of all permutations of [n+k] divided by k!; square array A(n,k), n>=0, k>=0, read by antidiagonals.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =0a(4) =1a(5) =1a(6) =0a(7) =1a(8) =3a(9) =4a(10) =0a(11) =1a(12) =5a(13) =13a(14) =15a(15) =0a(16) =1a(17) =7a(18) =28a(19) =67a(20) =76a(21) =0a(22) =1a(23) =9a(24) =49a(25) =179a(26) =411a(27) =455a(28) =0a(29) =1
External references
- oeis: A324362