OFFSET
1,2
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..1000
EXAMPLE
6!+2+1=723, 6-1=5; 6!+2+2=724, 6-2=4; so a(6)=2.
MATHEMATICA
b[n_] := n! + 2; c[n_] := n; Table[m = 1; While[GCD[b[n] + m, c[n] - m] == 1, m++]; m, {n, 100}]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jul 22 2012
STATUS
approved