-2674440
domain: Z
Appears in sequences
- An inverse Chebyshev transform of 1-x.at n=27A099363
- Expansion of 1-x*c(-x^2) where c(x) is the g.f. of A000108.at n=29A105523
- O.g.f. inverse of Catalan A000108 o.g.f.at n=15A115140
- Convolution of A115140 with itself.at n=15A115141
- a(n) = (-1)^[(n+1)/2] A000108([n/2]+1).at n=26A129996
- Expansion of (-1 + 2*x + sqrt( 1 - 4*x^2)) / (2*x) in powers of x.at n=29A210628
- Convolution inverse of A001700.at n=15A246432