OFFSET
1,1
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..5000
FORMULA
a(n) = A002808(n) mod 10. - Ray Chandler, Sep 04 2003
MATHEMATICA
Mod[Rest@ Select[Range@140, !PrimeQ@# &], 10] (* Robert G. Wilson v, Mar 17 2006 *)
PROG
(PARI) lista(nn) = forcomposite(n=2, nn, print1(n % 10, ", ")); \\ Michel Marcus, Oct 30 2017
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Roger L. Bagula, Aug 21 2003
EXTENSIONS
More terms from Ray Chandler, Sep 04 2003
Entries checked by Robert G. Wilson v, Mar 17 2006
STATUS
approved