-28820619
domain: Z
Appears in sequences
- Genocchi numbers (of first kind); unsigned coefficients give expansion of x*tan(x/2).at n=8A001469
- Genocchi numbers (of first kind): expansion of 2*x/(exp(x)+1).at n=17A036968
- Coefficients of even-indexed Euler polynomials (rising powers without zeros).at n=45A060083
- Triangle of Salie numbers.at n=47A065547
- a(n) = 2*n*(2^n - 1)*zeta(1-n) where in the case n=0 the limit is understood, zeta(s) the Riemann zeta function.at n=18A226158
- a(n) = A226158(n) - 2*A226158(n+1).at n=18A230324
- The autosequence of the first kind between A226158(n) and A278331(n).at n=16A279172