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A031126 Number of proper factorizations of p1^n*p2^3, where p1 and p2 are distinct primes. +0
1
30, 56, 96, 161, 256, 400, 607, 906, 1324, 1913, 2718, 3823, 5312, 7315, 9972, 13494, 18104, 24131, 31937, 42020, 54947, 71483, 92491, 119119 (list; graph; listen)
OFFSET

3,1
CROSSREFS

Cf. A028422.

Sequence in context: A027578 A029713 A154599 this_sequence A048451 A154796 A004962

Adjacent sequences: A031123 A031124 A031125 this_sequence A031127 A031128 A031129

KEYWORD

nonn

AUTHOR

Jeff Burch (jmburch(AT)osprey.smcm.edu)

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

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