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A061183 One-fourth of the fourth (m=3) column of triangle A060921 (bisection of Fibonacci triangle, odd part). 2
1, 10, 64, 331, 1505, 6272, 24540, 91527, 328768, 1145650, 3893630, 12958400, 42364427, 136389128, 433263360, 1360269093, 4226523495, 13011186624, 39722775806, 120366164765, 362255552384, 1083513943700 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Numerator polynomial of g.f. is (1/4) * Sum_{m=0..3} A061177(3,m)*x^m.
LINKS
Index entries for linear recurrences with constant coefficients, signature (12, -58, 144, -195, 144, -58, 12, -1).
FORMULA
a(n) = A060921(n+3, 3)/4.
G.f.: ((1-x^3)-2*(x-x^2))/(1-3*x+x^2)^4.
MATHEMATICA
CoefficientList[Series[((1-x^3)-2(x-x^2))/(1-3x+x^2)^4, {x, 0, 30}], x] (* or *) LinearRecurrence[{12, -58, 144, -195, 144, -58, 12, -1}, {1, 10, 64, 331, 1505, 6272, 24540, 91527}, 30] (* Harvey P. Dale, Jun 17 2022 *)
CROSSREFS
Sequence in context: A036426 A245068 A055855 * A367591 A241401 A219934
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Apr 20 2001
STATUS
approved

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)