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A136099 Number of ways to factor triangle 5*A036561; second in the series of arrays beginning with A060243. +0
1
1, 2, 2, 4, 5, 4, 7, 11, 11, 7, 12, 21, 26, 21, 12, 19, 38, 52, 52, 38, 19, 30, 64, 98, 109, 98, 64, 30, 45, 105, 171, 212, 212, 171, 105, 45, 67, 165, 289, 382, 424, 382, 289, 165, 67, 97, 254, 467, 662, 783, 783, 662, 487, 254, 97, 139, 381, 737, 1097, 1386 (list; table; graph; listen)
OFFSET

0,2

FORMULA

A136099 = A001055(5*A036561)

EXAMPLE

5*A036561(5) = 5*6 = 30 and there are five ways to factor 30.

CROSSREFS

Cf. A001055 A036561 A060243 A129306 A131419.

Adjacent sequences: A136096 A136097 A136098 this_sequence A136100 A136101 A136102

Sequence in context: A129303 A138557 A128900 this_sequence A072454 A115216 A122543

KEYWORD

nonn,tabl,uned

AUTHOR

Alford Arnold (Alford1940(AT)aol.com), Dec 15 2007

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Last modified January 7 17:35 EST 2009. Contains 152824 sequences.


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