-1118

Appears in sequences

• G.f. satisfies: A(x) = 1/(1 + x*A(x^4)) and also the continued fraction: 1 + x*A(x^5) = [1; 1/x, 1/x^4, 1/x^16, 1/x^64, ..., 1/x^(4^(n-1)), ...].at n=44A101914
• a(n) = -n^2 - n + 72.at n=34A110678
• Expansion of q * chi(-q^3) * chi(-q^5) / ( chi(-q^2) * chi(-q^30) ) in powers of q where chi() is a Ramanujan theta function.at n=55A132967
• Chapman's "evil" determinants I.at n=38A179071
• A179071 for p == 1 (mod 4).at n=17A179073
• Expansion of Product_{k>0} (1+k^2*x^k)^(-1/k).at n=13A303354
• Expansion of Sum_{k>=1} x^k/(1 + x^k)^3.at n=39A320900
• Expansion of Product_{i>=1, j>=1, k>=1, l>=1} (1 - x^(i*j*k*l))/(1 + x^(i*j*k*l)).at n=14A321302
• T(j,k) are the numerators u in the representation R = s/t + (2/Pi)*u/v of the resistance between two nodes separated by the distance vector (j,k) in an infinite square lattice of one-ohm resistors, where T(j,k), j >= 0, 0 <= k <= j, is a triangle read by rows.at n=17A355566