-830

Appears in sequences

• Expansion of (1-x-x^N)/((1-x)(1-x^2)(1-x^3)...(1-x^N)) for N = 6.at n=35A060025
• Expansion of 1/(1-2*x+2*x^2+x^3).at n=14A077944
• Expansion of 1/(1+2*x+2*x^2-x^3).at n=14A077992
• This table shows the coefficients of sum formulas of n-th Fibonacci numbers (A000045). The k-th row (k>=1) contains T(i,k) for i=1 to k, where k=[2*n+1+(-1)^(n-1)]/4 and T(i,k) satisfies F(n)= Sum_{i=1..k} T(i,k) * n^(k-i)/(k-1)!.at n=13A099731
• Numerators of e.g.f. sec(arccosh(x)) = cosec(arcsinh(x)).at n=3A102073
• Table with A235538 as first row, and k-th difference of A235538 as (k+1)-th row, read by antidiagonals.at n=44A235539
• Signed version of A094953.at n=49A248345
• Expansion of phi(q) * phi(-q^3) * f(-q^12) / f(-q^4)^3 in powers of q where phi(), f() are Ramanujan theta functions.at n=27A254372
• a(n) = Sum_{d|n} (-1)^(d-1)*d^2.at n=23A321543
• Partial alternating sums of Pillai's arithmetical function (A018804).at n=49A370895