-248

Appears in sequences

• a(n) = Sum_{t=0..n} g(t)*g(n-t) where g(t) = A002121(t).at n=23A002122
• Bisection of A002470.at n=5A002286
• Glaisher's function W(n).at n=11A002470
• Expansion of cos(sin(x))/cosh(x), even terms only.at n=3A009044
• Expansion of sin(sin(tan(x))).at n=3A009472
• E.g.f. tanh(sin(x)*exp(x)).at n=6A009799
• arctan(sinh(x)*sin(x))=2/2!*x^2-248/6!*x^6+766112/10!*x^10...at n=1A012527
• Expansion of tanh(sinh(x)*sin(x)).at n=1A012529
• Values of Zagier's function J_1.at n=4A027652
• Values of Zagier's function J_1(k) as k runs through the numbers -1, 0, 3, 4, 7, 8, ... which are == -1 or 0 mod 4.at n=2A027653
• Discriminants of quadratic number fields Q(sqrt -n) for n squarefree.at n=38A033197
• Fourier coefficients of E_{gamma,2}*E_{0,4}.at n=2A035036
• Coefficients of the '3rd-order' mock theta function nu(q).at n=43A053254
• McKay-Thompson series of class 27d for Monster.at n=53A058604
• a(n) = 6 + 33*n + 6*binomial(n, 2) - 28*binomial(n, 3) + 20*binomial(n, 4) - 47*binomial(n, 5).at n=6A058985
• Binomial transform of A073145.at n=7A073498
• Expansion of (1-x)^(-1)/(1+x^2-2*x^3).at n=18A077887
• Expansion of (1-x)^(-1)/(1+2*x+x^2-2*x^3).at n=11A077928
• Expansion of eta(q)^8 / eta(q^2)^4 in powers of q.at n=25A096727
• Triangle read by rows: Coefficients of characteristic polynomials of lower triangular matrix of Catalan numbers.at n=12A101413