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A050359 Number of ordered factorizations with 3 levels of parentheses indexed by prime signatures. A050356(A025487). +0
7
1, 1, 5, 9, 25, 65, 125, 425, 121, 625, 605, 2625, 1145, 3125, 4825, 15625, 9225, 15625, 35125, 13265, 90625, 2169, 45225, 67625, 78125, 240625, 126025, 515625, 25385, 377625, 465625, 390625, 1578125, 1062625, 2890625, 242825, 2915625 (list; graph; listen)
OFFSET

1,3
CROSSREFS

Sequence in context: A147286 A137199 A147512 this_sequence A062812 A032499 A112084

Adjacent sequences: A050356 A050357 A050358 this_sequence A050360 A050361 A050362

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Oct 15 1999.

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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