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A094633
A Lucas Jacobsthal product.
0
2, 1, 9, 20, 77, 231, 774, 2465, 8037, 25916, 84009, 271635, 879382, 2845181, 9208089, 29796580, 96426037, 312037551, 1009780614, 3267709225, 10574544477, 34219920076, 110738027409, 358355719995, 1159663574102, 3752749988581
OFFSET
0,1
FORMULA
G.f. : (2-x-6x^2)/((1-2x-4x^2)(1+x-x^2)); a(n)=L(n)*Jac(n+1)=A000032(n)*A001045(n+1).
MATHEMATICA
LinearRecurrence[{1, 7, 2, -4}, {2, 1, 9, 20}, 30] (* Harvey P. Dale, Sep 25 2020 *)
CROSSREFS
Sequence in context: A083162 A178075 A221756 * A261060 A144244 A079582
KEYWORD
easy,nonn
AUTHOR
Paul Barry, May 16 2004
STATUS
approved