-263

Appears in sequences

• Expansion of e.g.f. exp(arcsin(tanh(x))).at n=8A012123
• Expansion of e.g.f. cosh(arcsin(tanh(x))) (even powers only).at n=4A012131
• a(n) = floor(tan(n)^3).at n=30A051498
• Nearest integer to tan(n)^3.at n=30A051499
• Numerators of power series coefficients of a(x) satisfying a(a(a(x)))= arctan(x).at n=3A052136
• Coefficients of the '6th-order' mock theta function lambda(q).at n=21A053272
• a(n)=1+(1/12)(n*(n+1)*(n+3)*(4-n)).at n=8A080260
• Generalized Gaussian Fibonacci integers.at n=11A088137
• Inverse Boustrophedon transform of 2^n.at n=8A102590
• Diagonal sums of triangle A110324.at n=22A110326
• a(n) = -n^2 + 9*n + 23.at n=22A126719
• Row sums of A129396.at n=5A129397
• Smallest error in trying to solve n^3 = x^3 + y^3. That is, for each n, find positive integers x <= y < n such that | n^3 - x^3 - y^3 | is minimal and let a(n) := n^3 - x^3 - y^3.at n=37A135998
• Triangle read by rows, T[n,2i-1]=2T[n-1,i],T[n,2i]=2k-1-2T[n-1,i].at n=20A138583
• Expansion of 1/q(x) where q(x) = x^11*p(x+1/x) and p(x)= -2 -167*x +1694*x^2 -6069*x^3 +11210*x^4 -12297*x^5 +8554*x^6 -3875*x^7 +1140*x^8 -210*x^9 +22*x^10 - x^11.at n=2A143479
• Numerator of Hermite(n, 5/24).at n=2A159954
• Second differences of A000463; first differences of A188652.at n=22A188653
• a(n) = 111*n^2 - 3123*n + 10753.at n=24A211607
• a(n) = -prime(n) if prime(n) is an irregular prime else prime(n).at n=55A226159
• Values of n such that L(8) and N(8) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=2A226928