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A088308
2 followed by list of composite numbers mod 10.
1
2, 4, 6, 8, 9, 0, 2, 4, 5, 6, 8, 0, 1, 2, 4, 5, 6, 7, 8, 0, 2, 3, 4, 5, 6, 8, 9, 0, 2, 4, 5, 6, 8, 9, 0, 1, 2, 4, 5, 6, 7, 8, 0, 2, 3, 4, 5, 6, 8, 9, 0, 2, 4, 5, 6, 7, 8, 0, 1, 2, 4, 5, 6, 7, 8, 0, 1, 2, 3, 4, 5, 6, 8, 9, 0, 2, 4, 5, 6, 8, 0, 1, 2, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 8, 9, 0, 2, 3, 4, 5, 6, 8
OFFSET
1,1
LINKS
MATHEMATICA
Join[{2}, Mod[Rest@Select[Range@500, ! PrimeQ@# &], 10]] (* G. C. Greubel, Oct 29 2017 *)
CROSSREFS
A083786 is a better version. Cf. A002808.
Sequence in context: A062355 A366602 A087671 * A167832 A134488 A263800
KEYWORD
nonn
AUTHOR
Roger L. Bagula, Nov 05 2003
EXTENSIONS
Edited by N. J. A. Sloane, Mar 30 2006
STATUS
approved