12683575296
domain: N
Appears in sequences
- a(n) = 2^(n-2)*binomial(n+1,2).at n=25A052482
- a(1) = 1; a(n) is the smallest multiple of a(n-1) not divisible by 10 which is greater than the digit reversal of a(n-1). In case R(a(n-1)) < a(n-1) then a(n) = 2*a(n-1).at n=26A076086
- Sequence associated with a(n) = 2*a(n-1) + k*(k+2)*a(n-2).at n=26A080929
- Expansion of e.g.f. cosh(x)^2*(x+x^2/2).at n=28A385601