a(n) = ((6*A023000(n))^3 + 1)/7^n, n >= 0.
A212156
a(n) = ((6*A023000(n))^3 + 1)/7^n, n >= 0.
Terms
- a(0) =1a(1) =31a(2) =2257a(3) =116623a(4) =5757601a(5) =282424831a(6) =13840934257a(7) =678220602223
External references
- oeis: A212156
A212156
a(n) = ((6*A023000(n))^3 + 1)/7^n, n >= 0.