135680
domain: N
Appears in sequences
- Triangle of tangent numbers.at n=26A008308
- Triangle T(n,k) (1 <= k <= n) of tangent numbers, read by rows: T(n,k) = coefficient of x^n/n! in expansion of (tan x)^k/k!.at n=48A059419
- Nonzero numbers in expansion of ((tan(x))^4)/4! in (x^n)/n!.at n=3A060056
- The fourth row of the ED2 array A167560.at n=31A167561