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A054132
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T(2n+1,n), array T as in A054126.
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0
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3, 13, 68, 394, 2396, 14925, 94248, 600498, 3851012, 24821845, 160646528, 1043245180, 6794418992, 44360061964, 290244849376
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OFFSET
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0,1
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LINKS
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FORMULA
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PROG
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(PARI) a(n) = 2^n + sum(m=0, n+1, binomial(3*n+1, m)) \\ Jianing Song, May 30 2022
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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