-4146

Appears in sequences

• a(n) = A226158(n) - 2*A226158(n+1).at n=11A230324
• a(n) = -Zeta(1-n)*n*(2^(n+1) - 4) - Zeta(-n)*(n+1)*(2^(n+2) - 2), for n = 0 the limit is understood.at n=12A240485
• Shifted sequence of second differences of Genocchi numbers.at n=9A278331
• G.f.: 1/(1 + x/(1 + x^3/(1 + x^6/(1 + x^10/(1 + x^15/(1 + ... + x^(k*(k+1)/2)/(1 + ...))))))), a continued fraction.at n=25A285484