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Search: id:A002658
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| A002658 |
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a(0) = a(1) = 1; for n > 0, a(n+1) = a(n)*(a(0)+...+a(n-1)) + a(n)*(a(n)+1)/2.
(Formerly M1814 N0718)
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8
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| 1, 1, 2, 7, 56, 2212, 2595782, 3374959180831, 5695183504489239067484387, 16217557574922386301420531277071365103168734284282
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