Shanks's array d_{a,n} (a >= 1, n >= 1) that generalizes the tangent numbers, read by antidiagonals upwards.
A235606
Shanks's array d_{a,n} (a >= 1, n >= 1) that generalizes the tangent numbers, read by antidiagonals upwards.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =2a(4) =11a(5) =16a(6) =4a(7) =46a(8) =361a(9) =272a(10) =4a(11) =128a(12) =3362a(13) =24611a(14) =7936a(15) =6a(16) =272a(17) =16384a(18) =515086a(19) =2873041a(20) =353792a(21) =8a(22) =522a(23) =55744a(24) =4456448a(25) =135274562a(26) =512343611a(27) =22368256a(28) =8a(29) =904
External references
- oeis: A235606