96719
domain: N
Appears in sequences
- a(n) = 4*n^4 + 8*n^3 - 4*n - 1 = (2*n^2 - 1)*(2*n^2 + 4*n + 1).at n=12A057769
- Subset of A037165 (p(n)*p(n+1)-p(n)-p(n+1)) for twin primes.at n=19A137367
- a(n) gives the odd leg of the second of the two Pythagorean triangles with hypotenuse A080109(n) = A002144(n)^2. This is the larger of the two possible odd legs.at n=29A253804