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A048288
Number of prime factors of reverse concatenation of numbers from 1 to n.
+0
1
0, 2, 2, 2, 3, 2, 2, 4, 5, 3, 2, 3, 3, 4, 6, 4, 7, 10, 3, 5, 4, 5, 4, 5, 6, 9, 9, 5, 7, 8, 3, 6, 5
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.
AT&T Labs Research
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