73222472421
domain: N
Appears in sequences
- a(n) = 7*3^n.at n=21A005032
- a(n) = (n-1)*3^(n-2), n > 0.at n=21A027471
- a(n) = (7*3^n - 4*0^n)/3.at n=22A082541
- Expansion of (1-3*x+12*x^2)/((1-3*x)*(1+3*x)).at n=22A091103
- a(n) = 3*a(n-1) for n>2; a(0)=1, a(1)=3, a(2)=7.at n=23A141495
- Denominators of a ternary BBP-type formula for log(3).at n=20A154920
- a(n) = (2*n + 1)*9^n.at n=10A155988
- Denominators of ternary BBP-type series for log(5).at n=15A164985
- a(n) = (1/2!)*3^n*(n+3)*(n).at n=17A288835