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A038700 Smallest prime == -1 (mod n). 4
2, 3, 2, 3, 19, 5, 13, 7, 17, 19, 43, 11, 103, 13, 29, 31, 67, 17, 37, 19, 41, 43, 137, 23, 149, 103, 53, 83, 173, 29, 61, 31, 131, 67, 139, 71, 73, 37, 233, 79, 163, 41, 257, 43, 89, 137, 281, 47, 97, 149, 101, 103, 211, 53, 109, 167, 113, 173, 353, 59, 487, 61, 251 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

f[n_] := Block[{k = n - 1}, While[ !PrimeQ@k, k += n]; k]; Array[f, 63] [From Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 09 2009]

CROSSREFS

Sequence in context: A077989 A109620 A138781 * A177799 A125767 A131580

Adjacent sequences:  A038697 A038698 A038699 * A038701 A038702 A038703

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified February 14 14:07 EST 2012. Contains 205623 sequences.