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A144276
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Row sums of triangle A144275 (called S2hat(-2)).
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1
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1, 3, 13, 97, 997, 13585, 225625, 4454801, 101415881, 2618639033, 75524367593, 2406745316697, 83950853842617, 3181371937414425, 130135485102246265, 5714800778645325881, 268144898273200109561, 13387708871579930596793, 708640690235801235876153
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OFFSET
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1,2
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LINKS
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FORMULA
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a(n) = Sum_{m=1..n} A144275(n,m), n>=1.
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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