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A105853 Sigma(n) (mod 10) i.e. unit's digit of sigma(n). 0
1, 3, 4, 7, 6, 2, 8, 5, 3, 8, 2, 8, 4, 4, 4, 1, 8, 9, 0, 2, 2, 6, 4, 0, 1, 2, 0, 6, 0, 2, 2, 3, 8, 4, 8, 1, 8, 0, 6, 0, 2, 6, 4, 4, 8, 2, 8, 4, 7, 3, 2, 8, 4, 0, 2, 0, 0, 0, 0, 8, 2, 6, 4, 7, 4, 4, 8, 6, 6, 4, 2, 5, 4, 4, 4, 0, 6, 8, 0, 6, 1, 6, 4, 4, 8, 2, 0, 0, 0, 4, 2, 8, 8, 4, 0, 2, 8, 1, 6, 7, 2, 6, 4, 0, 2 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

PROG

(PARI) a(n)=sigma(n)%10

CROSSREFS

Sequence in context: A010613 A134688 A077650 * A017665 A105852 A190998

Adjacent sequences:  A105850 A105851 A105852 * A105854 A105855 A105856

KEYWORD

easy,nonn,base

AUTHOR

Shyam Sunder Gupta (guptass(AT)rediffmail.com), May 05 2005

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Last modified February 16 20:59 EST 2012. Contains 205968 sequences.