Sum T(n,k) of the entries in the k-th cycles of all permutations of [n]; triangle T(n,k), n>=1, 1<=k<=n, read by rows.
A285439
Sum T(n,k) of the entries in the k-th cycles of all permutations of [n]; triangle T(n,k), n>=1, 1<=k<=n, read by rows.
Terms
- a(0) =1a(1) =4a(2) =2a(3) =21a(4) =12a(5) =3a(6) =132a(7) =76a(8) =28a(9) =4a(10) =960a(11) =545a(12) =235a(13) =55a(14) =5a(15) =7920a(16) =4422a(17) =2064a(18) =612a(19) =96a(20) =6a(21) =73080a(22) =40194a(23) =19607a(24) =6692a(25) =1386a(26) =154a(27) =7a(28) =745920a(29) =405072
External references
- oeis: A285439