OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (0,1,3,1).
FORMULA
Pairwise sums of A026385. - Ralf Stephan, Jul 22 2003
G.f.: [(1+x)(1+x+x^2)]/[1-x^2-3x^3-x^4]. - Ralf Stephan, Apr 30 2004
MATHEMATICA
LinearRecurrence[{0, 1, 3, 1}, {1, 2, 3, 6}, 40] (* Harvey P. Dale, Apr 15 2015 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved