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A050315 Main diagonal of A050314. 2
1, 1, 1, 2, 1, 2, 2, 5, 1, 2, 2, 5, 2, 5, 5, 15, 1, 2, 2, 5, 2, 5, 5, 15, 2, 5, 5, 15, 5, 15, 15, 52, 1, 2, 2, 5, 2, 5, 5, 15, 2, 5, 5, 15, 5, 15, 15, 52, 2, 5, 5, 15, 5, 15, 15, 52, 5, 15, 15, 52, 15, 52, 52, 203, 1, 2, 2, 5, 2, 5, 5, 15, 2, 5, 5, 15, 5, 15, 15, 52, 2, 5, 5, 15, 5, 15 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

LINKS

Michael Gilleland, Some Self-Similar Integer Sequences

FORMULA

Bell number of number of 1's in binary. A000110(A000120).

CROSSREFS

Sequence in context: A193691 A089408 A079318 * A128978 A145862 A058701

Adjacent sequences:  A050312 A050313 A050314 * A050316 A050317 A050318

KEYWORD

nonn

AUTHOR

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

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Last modified February 15 14:56 EST 2012. Contains 205822 sequences.