OFFSET
0,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (6,-12,8).
FORMULA
MAPLE
a:= n-> 2^n*(1+n*(n+1)/2):
seq(a(n), n=0..30);
MATHEMATICA
Table[2^n (1+(n(n+1))/2), {n, 0, 30}] (* or *) LinearRecurrence[{6, -12, 8}, {1, 4, 16}, 30] (* Harvey P. Dale, Jan 19 2023 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jan 02 2021
STATUS
approved