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Search: id:A007969
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A007969 Rectangular numbers. +0
2
2, 5, 6, 10, 12, 13, 14, 17, 18, 20, 21, 22, 26, 28, 29, 30, 33, 34, 37, 38, 39, 41, 42, 44, 45, 46, 50, 52, 53, 54, 55, 56, 57, 58, 60, 61, 62, 65, 66, 68, 69, 70, 72, 73, 74, 76, 77, 78, 82, 84, 85, 86, 89, 90, 92, 93, 94, 95, 97, 98, 101, 102, 105, 106, 108, 109 (list; graph; listen)
OFFSET

1,1

LINKS

J. H. Conway, On Happy Factorizations, J. Integer Sequences, Vol. 1, 1998, #1.

CROSSREFS

Every number belongs to exactly one of A000290, A007969, A007970.

Sequence in context: A077471 A064572 A032399 this_sequence A162340 A089269 A047440

Adjacent sequences: A007966 A007967 A007968 this_sequence A007970 A007971 A007972

KEYWORD

nonn

AUTHOR

J. H. Conway (conway(AT)math.princeton.edu)

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


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