57310
domain: N
Appears in sequences
- a(n) = a(n-1) + a(n-2) + 4, with a(0)=0, a(1)=2.at n=20A168193
- Row sums of triangle in A204026.at n=39A238374
- Number of distinct linear polynomials b+c*x in row n of array generated as in Comments.at n=20A242448
- Numbers whose Zeckendorf representation (A014417) and dual Zeckendorf representation (A104326) are both palindromic.at n=21A331192
- a(n) = Sum_{k=1..n} sigma_2( (n/gcd(k,n))^2 ).at n=9A372996