OFFSET
0,2
FORMULA
a(n) ~ phi^(4*n+4) / (2^(3/2) * 5^(1/4) * sqrt(Pi*n)), where phi = A001622 is the golden ratio. - Vaclav Kotesovec, Feb 18 2024
MATHEMATICA
Table[HypergeometricPFQ[{-1 - n, -n, 1 + n, 2 + n}, {1/2, 1/2, 1}, 1/16], {n, 0, 25}] (* Vaclav Kotesovec, Feb 18 2024 *)
PROG
(PARI) a(n) = round(hypergeom([-n, 1 + n, 2 + n, -1 - n], [1/2, 1/2, 1], 1/16)); \\ Michel Marcus, Feb 13 2024
CROSSREFS
KEYWORD
nonn
AUTHOR
Peter Luschny, Feb 13 2024
STATUS
approved