a(n) = 16^n * Sum_{k=0..n} (-1)^k*binomial(-1/2, k)^2.
A358362
a(n) = 16^n * Sum_{k=0..n} (-1)^k*binomial(-1/2, k)^2.
Terms
- a(0) =1a(1) =12a(2) =228a(3) =3248a(4) =56868a(5) =846384a(6) =14395920a(7) =218556096a(8) =3662534436a(9) =56236646576a(10) =933921124752
External references
- oeis: A358362