login
A174654
Partial sums of A030279.
0
1, 9, 59, 335, 1732, 8404, 38969, 174637, 762063, 3255119, 13662512, 56511312, 230859729, 933104857, 3736739227, 14843364031, 58540883044, 229411923796, 893904838857, 3465221557357, 13370453635199
OFFSET
1,2
FORMULA
a(n) = Sum_{i=1..n} A030279(i).
G.f.: x*(x-1)^2*(x+1)*(x^3-4*x^2+2*x-1) / (x^3-2*x^2+4*x-1)^3. - Colin Barker, Apr 21 2013
MATHEMATICA
LinearRecurrence[{12, -54, 115, -132, 108, -59, 24, -6, 1}, {1, 9, 59, 335, 1732, 8404, 38969, 174637, 762063}, 30] (* Harvey P. Dale, Nov 07 2022 *)
CROSSREFS
Cf. A030279.
Sequence in context: A276648 A308353 A280103 * A027249 A026717 A231228
KEYWORD
nonn,easy
AUTHOR
Jonathan Vos Post, Mar 25 2010
STATUS
approved