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A123611
Row sums of triangle
A123610
.
+0
4
1, 2, 4, 8, 20, 52, 160, 492, 1620, 5408, 18504, 64132, 225440, 800048, 2865720, 10341208, 37568340, 137270956, 504176992, 1860277044, 6892335720, 25631327688, 95640894056, 357975249028, 1343650267296, 5056424257552
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Maintained by
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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.
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