903981141
domain: N
Appears in sequences
- a(n) = 7*3^n.at n=17A005032
- a(n) = (7*3^n - 4*0^n)/3.at n=18A082541
- Expansion of (1-3*x+12*x^2)/((1-3*x)*(1+3*x)).at n=18A091103
- Reduced denominators of the central moments of the distribution of random line segments picked on a unit line segment.at n=17A103308
- a(n) = 3*a(n-1) for n>2; a(0)=1, a(1)=3, a(2)=7.at n=19A141495