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A334673
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a(n) = 23*a(n-1) - a(n-2) + 1 for n > 1, a(0)=0, a(1)=1.
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3
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0, 1, 24, 552, 12673, 290928, 6678672, 153318529, 3519647496, 80798573880, 1854847551745, 42580695116256, 977501140122144, 22439945527693057, 515141245996818168, 11825808712399124808, 271478459139183052417, 6232178751488811080784, 143068632825103471805616
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OFFSET
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0,3
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LINKS
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FORMULA
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MATHEMATICA
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CoefficientList[Series[x/((1 - x) (x^2 - 23 x + 1)), {x, 0, 18}], x] (* Michael De Vlieger, Apr 07 2021 *)
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CROSSREFS
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Cf. A212336 for more sequences with g.f. of the type 1/(1-k*x+k*x^2-x^3).
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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a(13)-a(14) corrected and more terms added by Alois P. Heinz, Sep 11 2020
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STATUS
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approved
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