-38227

Appears in sequences

• Genocchi numbers (of first kind); unsigned coefficients give expansion of x*tan(x/2).at n=6A001469
• Triangle of coefficients of Euler polynomials E_2n(x) (exponents in increasing order).at n=50A004172
• Triangle of coefficients of Euler polynomials E_2n(x) (exponents in decreasing order).at n=62A004173
• Genocchi numbers (of first kind): expansion of 2*x/(exp(x)+1).at n=13A036968
• Coefficients of even-indexed Euler polynomials (falling powers without zeros).at n=35A060082
• Coefficients of even-indexed Euler polynomials (rising powers without zeros).at n=28A060083
• Triangle of Salie numbers.at n=30A065547
• Inverse of coefficient array for polynomials P(n,x)=x*P(n-1,x)+floor(n^2/4)*P(n-2,x), P(0,x)=1,P(1,x)=x.at n=67A178117
• 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=14A226158
• a(n) = A226158(n) - 2*A226158(n+1).at n=14A230324
• The autosequence of the first kind between A226158(n) and A278331(n).at n=12A279172