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A105871
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Diagonal sums of number triangle A105870.
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0
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1, 2, 6, 22, 85, 336, 1350, 5492, 22554, 93300, 388201, 1622868, 6811056, 28680356, 121111440, 512684484, 2174928031, 9243973062, 39354962345, 167799259130, 716414975613, 3062437147352, 13105366936465, 56139506687280
(list; graph; refs; listen; history; internal format)
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