1129760415
domain: N
Appears in sequences
- Motzkin numbers: number of ways of drawing any number of nonintersecting chords joining n (labeled) points on a circle.at n=23A001006
- Expansion of (1 + x - sqrt(1 - 2*x - 3*x^2)) / 2 in powers of x.at n=25A086246
- Bisection of Motzkin numbers A001006.at n=11A099250
- Odd Motzkin numbers.at n=15A134717
- Expansion of (3 -x -sqrt(1-2*x-3*x^2))/2.at n=25A168049
- A permutation of Motzkin numbers by reversal of indices in blocks of length 7.at n=26A180352