-2184

Appears in sequences

• Coefficients in expansion of Eisenstein series E_2 (also called E_1 or G_2).at n=36A006352
• Expansion of e.g.f. arcsin(arctan(x) * log(x+1)).at n=7A012398
• Expansion of e.g.f.: sinh(arctan(x)*log(x+1))=2/2!*x^2-3/3!*x^3-10/5!*x^5+328/6!*x^6...at n=7A012401
• Coefficients of even-indexed Euler polynomials (falling powers without zeros).at n=39A060082
• Coefficients of even-indexed Euler polynomials (rising powers without zeros).at n=41A060083
• Triangle of coefficients of n-th degree interpolating polynomial to sqrt(x) multiplied by 4^n.at n=34A091764
• a(n) = -n^2 - n + 72.at n=47A110678
• Riordan array (1/(1+2xc(-2x)),xc(-2x)/(1+2xc(-2x))), c(x) the g.f. of A000108.at n=32A114193
• a(n) = -a(n-1) + a(n-3) - (a(n-1) - a(n-2))^2 + (a(n-2) - a(n-3))^2.at n=8A122593
• Expansion of K(k) * (6 * E(k) - (1 + 4*k'^2) * K(k)) / (Pi/2)^2 in powers of q where E(k), K(k) are complete elliptic integrals and q = exp(-Pi * K(k') / K(k)).at n=36A143337
• Sequence with a (4,-8) Somos-4 Hankel transform.at n=9A178076
• Expansion of (phi(-q)^3 / phi(-q^3))^2 in powers of q where phi() is a Ramanujan theta function.at n=39A229616
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 43", based on the 5-celled von Neumann neighborhood.at n=27A269879
• Column 1 of triangle in A331431.at n=11A331433
• E.g.f.: 1 / (1 - x - log(1 - x)).at n=8A338448