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A118025
Column 0 of triangle
A118024
; also, column 0 of the matrix square of
A118024
equals this sequence shifted 1 place left.
+0
2
1, 1, 2, 6, 28, 216, 2864, 66656, 2760896, 205824384, 27886535424, 6924055315968, 3173107641551872, 2700294145104025600, 4289542333320782426112, 12777557344991526923034624, 71652489091220599890081005568
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Maintained by
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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