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A129596 Table T(i,j): T(1,1), T(2,1), T(2,2), T(3,1), T(3,2), T(3,3), ... of elementwise sums of partitions encoded in the prime factorizations of i and j. 1
1, 2, 4, 3, 9, 6, 4, 8, 27, 16, 5, 25, 15, 125, 10, 6, 18, 12, 54, 45, 24, 7, 49, 35, 343, 21, 175, 14, 8, 16, 81, 32, 625, 162, 2401, 64, 9, 27, 18, 81, 75, 36, 245, 243, 54, 10, 50, 30, 250, 20, 90, 63, 1250, 150, 40, 11, 121, 77, 1331, 55, 539, 33, 14641, 847, 275 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This is the upper triangular region of array A129595 (or equally, the lower triangular region, because A129595 is symmetric).

LINKS

Table of n, a(n) for n=1..65.

CROSSREFS

Sequence in context: A000463 A137442 A111390 * A329901 A284572 A157182

Adjacent sequences:  A129593 A129594 A129595 * A129597 A129598 A129599

KEYWORD

nonn,tabl

AUTHOR

Antti Karttunen, May 01 2007, based on Marc LeBrun's Jan 11 2006 message on the SeqFan mailing list

STATUS

approved

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Last modified April 20 08:38 EDT 2021. Contains 343125 sequences. (Running on oeis4.)