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A143595
Triangle read by rows,
A000012
* (an infinite lower triangular matrix with 1's in the first column and the rest 2's); 1<=k<=n.
+0
3
1, 2, 2, 3, 4, 2, 4, 6, 4, 2, 5, 8, 6, 4, 2, 6, 10, 8, 6, 4, 2, 7, 12, 10, 8, 6, 4, 2, 8, 14, 12, 10, 8, 6, 4, 2, 9, 16, 14, 12, 10, 8, 6, 4, 2, 10, 18, 16, 14, 12, 10, 8, 6, 4, 2, 11, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2
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Maintained by
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
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