-776

Appears in sequences

• arcsinh(arcsin(tanh(x)))=x-2/3!*x^3+24/5!*x^5-776/7!*x^7+49536/9!*x^9...at n=3A012128
• Image of Euler totient function (A000010) under "little Hankel" transform that sends [c_0, c_1, ...] to [d_0, d_1, ...] where d_n = c_n^2 - c_{n+1}*c_{n-1}.at n=28A056228
• McKay-Thompson series of class 24G for the Monster group.at n=56A112161
• Numerators of the inverse binomial transform of a shuffled sequence of "original" Bernoulli and Bernoulli numbers.at n=9A176150
• Chapman's "evil" determinants I.at n=28A179071
• A179071 for p == 1 (mod 4).at n=13A179073
• Expansion of psi(-x)^2 * f(-x)^6 in powers of x where psi(), f() are Ramanujan theta functions.at n=33A215600
• Expansion of (1 - 2*x^2)/(1 + x)^3. Second column of Riordan triangle A248156.at n=42A248158
• Triangle read by rows: T(n,k) is the coefficient A_k in the transformation Sum_{k=0..n} x^k = Sum_{k=0..n} A_k*(x-3*(-1)^k)^k.at n=42A249269
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 358", based on the 5-celled von Neumann neighborhood.at n=39A271413
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 798", based on the 5-celled von Neumann neighborhood.at n=44A273572
• Triangle read by rows, T(n, k) the coefficients of some polynomials in Pi, for n >= 0 and 0 <= k <= n.at n=17A295516
• a(n) = Sum_{k=1..n} (-1)^(k-1) * binomial(k+1,2) * floor(n/k).at n=51A366937
• Irregular triangle where the n-th row gives coefficients of the minimal irreducible polynomial, that has a root at the elliptic modular lambda-star function evaluated in n.at n=45A389848