-5167

Appears in sequences

• Expansion of exp(tanh(tan(x))).at n=9A009260
• Expansion of sin(tan(tanh(x))).at n=4A009503
• sech(arcsin(tan(x)))=1-1/2!*x^2-7/4!*x^4-121/6!*x^6-5167/8!*x^8...at n=4A012086
• cos(arcsin(sinh(x))) = 1-1/2!*x^2-7/4!*x^4-121/6!*x^6-5167/8!*x^8...at n=4A012103
• Reflected (see A074058) pentanacci numbers A074048.at n=41A074062
• a(n)=1+(1/12)(n*(n+1)*(n+3)*(4-n)).at n=16A080260
• Row sums of A128586.at n=19A128587
• 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-2*(-1)^k)^k.at n=41A249267
• Expansion of 1/(1 + Sum_{k>=1} k^3 * x^k).at n=8A316088