50388480
domain: N
Appears in sequences
- Expansion of e.g.f.: tanh(log(1+x))*log(1+x).at n=12A009779
- Expansion of (1-x)/(1-6*x).at n=10A052934
- Fifth binomial transform of binomial(n+2, 2).at n=9A081907
- a(n) = 4*3^(n^2+2n+1)*Product_{j=1..n} (9^j-1).at n=2A092299
- Number of palindromes of length n (in base 6).at n=18A117858
- Number of palindromes of length n (in base 6).at n=19A117858
- a(n) = 6*a(n-2) for n > 2; a(1) = 1, a(2) = 5.at n=19A166023
- a(n) = n^10 - n^9.at n=6A240933