OFFSET
0,2
COMMENTS
Left column of triangle A131876.
Binomial transform of (1, 14, 0, 0, 0, ...).
Partial sums give A051868. - Leo Tavares, Mar 19 2023
LINKS
FORMULA
a(n) = 14*n + 1.
From Elmo R. Oliveira, Apr 03 2024: (Start)
G.f.: (1+13*x)/(1-x)^2.
E.g.f.: exp(x)*(1 + 14*x).
a(n) = 2*a(n-1) - a(n-2) for n >= 2. (End)
EXAMPLE
a(2) = 29 = 2*14 + 1.
a(2) = 29 = (1, 2, 1) dot (1, 14, 0) = (1 + 28 + 0).
MATHEMATICA
Range[1, 1000, 14] (* Vladimir Joseph Stephan Orlovsky, May 31 2011 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Gary W. Adamson, Jul 22 2007
STATUS
approved