

A167920


Smallest single or isolated number==1(mod n).


0



2, 23, 4, 37, 6, 37, 113, 89, 37, 131, 12, 37, 53, 113, 211, 97, 18, 37, 457, 401, 127, 23, 47, 97, 251, 53, 163, 113, 30, 211, 373, 97, 67, 307, 211, 37, 223, 457, 79, 401, 42, 127, 173, 89, 541, 47, 941, 97, 491, 251, 307, 53, 743, 163, 331, 113, 457, 233, 60, 541
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..60.


EXAMPLE

If n=72, the smallest single or isolated number in the sequence 73, 145, 217, 289, 361, 433, 505, 577, so a(72)=577.


CROSSREFS

Cf. A034694, A167706.
Sequence in context: A245628 A162711 A120713 * A237579 A104644 A158992
Adjacent sequences: A167917 A167918 A167919 * A167921 A167922 A167923


KEYWORD

nonn


AUTHOR

JuriStepan Gerasimov, Nov 15 2009


EXTENSIONS

Corrected (a(2) replaced by 23, a(3) inserted, 113 replaced by 97, 337 by 97, 257 by 97 etc.) by R. J. Mathar, May 30 2010


STATUS

approved



