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A135871
Triangle by columns:
A013610
signed and interleaved with zeros.
+0
2
1, 0, 3, -1, 0, 9, 0, -6, 0, 27, 1, 0, -27, 0, 81, 0, 9, 0, -108, 0, 243, -1, 0, 54, 0, -405, 0, 729, 0, -12, 0, 270, 0, -1458, 0, 2187
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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