A197192 a(n) = binomial(n+9, 9)*7^n.
1, 70, 2695, 75460, 1716715, 33647614, 588833245, 9421331920, 140142312310, 1961992372340, 26094498552122, 332111799754280, 4068369546989930, 48194531556649940, 554237112901474310, 6207455664496512272, 67894046330430602975
Offset: 0
Links
- Vincenzo Librandi, Table of n, a(n) for n = 0..400
Programs
-
Magma
[Binomial(n+9, 9)*7^n: n in [0..20]];
-
Mathematica
Table[Binomial[n+9,9]7^n,{n,0,20}] (* Harvey P. Dale, Jul 10 2025 *)
Formula
a(n) = C(n + 9, 9)*7^n.