OFFSET
1,2
COMMENTS
Row 4 of A188784.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..43
FORMULA
Empirical: a(n) = 392*n^4 - 1128*n^3 + 912*n^2 - 192*n for n>2.
Conjectures from Colin Barker, Apr 28 2018: (Start)
G.f.: 16*x^2*(36 + 378*x + 194*x^2 - 35*x^3 + 19*x^4 - 4*x^5) / (1 - x)^5.
a(n) = 5*a(n-1) - 10*a(n-2) + 10*a(n-3) - 5*a(n-4) + a(n-5) for n>7.
(End)
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 10 2011
STATUS
approved