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A001161
Numbers containing an even number of letters.
+0
1
0, 4, 5, 9, 11, 12, 13, 14, 18, 19, 20, 24, 25, 29, 30, 34, 35, 39, 41, 42, 43, 46, 47, 48, 51, 52, 53, 56, 57, 58, 61, 62, 63, 66, 67, 68, 71, 72, 73, 76, 77, 78, 80, 84, 85, 89, 90, 94, 95, 99
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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