100464
domain: N
Appears in sequences
- F(4n+4)/F(4)-F(3n+3)/F(3) where F(n)=A000045(n).at n=6A114849
- Number of n X 5 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=12A208066
- a(n) = n*(n + 1)*(n + 2)*(n + 3)*(n + 4)*(n^2 - n + 6)/720.at n=11A256861
- Numbers n such that numerator(sigma(n)/n) = reverse(denominator(sigma(n)/n)).at n=5A259398
- Fourier coefficients of -q*(Delta/q)' where Delta is the normalized unique weight-twelve cusp form for the full modular group (the generating function of Ramanujan's tau function).at n=5A289833
- a(n) is the least number that is the area of a primitive Pythagorean triangle and is the sum of 2*n consecutive primes.at n=36A387673