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Search: id:A004783
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A004783 3!(2n-4)!/n!(n-1)! is an integer. +0
1
4, 7, 13, 16, 19, 21, 29, 43, 46, 67, 78, 85, 89, 92, 100, 105, 111, 121, 127, 141, 154, 157, 171, 188, 191, 199, 205, 210, 211, 217, 221, 229, 232, 239, 241, 267, 274, 277, 300, 309, 313, 316, 323, 326, 331, 343, 346, 369, 379, 415, 421, 430 (list; graph; listen)
OFFSET

0,1

CROSSREFS

Sequence in context: A051456 A031142 A060751 this_sequence A084089 A137827 A045090

Adjacent sequences: A004780 A004781 A004782 this_sequence A004784 A004785 A004786

KEYWORD

nonn

AUTHOR

R. K. Guy (rkg(AT)cpsc.ucalgary.ca)

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


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