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A143470 Triangle read by rows, A000012 * A143316, 1<=k<=n. +0
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1, 3, 1, 7, 1, 1, 11, 3, 1, 1, 19, 3, 1, 1, 1, 23, 7, 3, 1, 1, 1, 35, 7, 3, 1, 1, 1, 43, 11, 3, 3, 1, 1, 1, 1, 55, 11, 7, 3, 1, 1, 1, 1, 1, 63, 19, 7, 3, 31, 1, 1, 1, 1, 83, 19, 7, 3, 3, 1, 1, 1, 1, 1, 1, 91, 23, 11, 7, 3, 3, 1, 1, 1, 1, 1, 1, 115, 23, 11, 7, 3, 3, 1, 1, 1, 1, 1, 1, 1 (list; table; graph; listen)
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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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