-2492

Appears in sequences

• a(1) = 0, a(2) = -2; for n > 2, a(n) + a(n-2) - a(n-3) - a(n-5) - ... - a(n-p) = (-1)^(n+1)*n if n is prime, otherwise = 0, where p = largest prime < n.at n=53A002120
• Triangle of Salie numbers.at n=32A065547
• Sum at 45 degrees to horizontal in triangle of A081498.at n=54A081499
• Fifth column of Salié-triangle A065547.at n=3A095653
• Expansion of q^(-1) * f(-q^2, -q^5)^2 * f(-q^3, -q^4) / f(-q^1, -q^6)^3 in powers of q where f() is Ramanujan's two-variable theta function.at n=41A108481
• Triangle read by rows: matrix product of the Stirling numbers of the first kind with the binomial coefficients.at n=39A126353
• Expansion of q^(-1) * f(-q^3, -q^4)^3 / (f(-q^1, -q^6)^2 * f(-q^2, -q^5)) in powers of q where f() is Ramanujan's two-variable theta function.at n=41A246713