-917
domain: Z
Appears in sequences
- arctan(sec(x)*arctanh(x))=x+3/3!*x^3-7/5!*x^5-917/7!*x^7-7183/9!*x^9...at n=3A012844
- Generalized Catalan numbers C(-6; n).at n=4A064328
- Triangle composed of generalized Catalan numbers.at n=61A064334
- Row sums of the triangle A096875, which transforms n-dimensional partitions into (n-2)-dimensional partitions.at n=13A096876
- a(n) = 1*2*3 - 4*5*6 + 7*8*9 - 10*11*12 + 13*14*15 - ... + (up to n).at n=12A319543
- Expansion of 1/Sum_{k>=0} x^(k^3).at n=47A323633