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A031127 Number of proper factorizations of p1^n*p2^4, where p1 and p2 are distinct primes. 0
108, 188, 322, 521, 830, 1278, 1940, 2875, 4214, 6065, 8643, 12150, 16932, 23335, 31920, 43263, 58249, 77824, 103361, 136370, 178974 (list; graph; refs; listen; history; internal format)
OFFSET

4,1

CROSSREFS

Cf. A028422.

Sequence in context: A173748 A046294 A039601 * A044340 A044721 A095050

Adjacent sequences:  A031124 A031125 A031126 * A031128 A031129 A031130

KEYWORD

nonn

AUTHOR

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

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.