OFFSET
1,2
COMMENTS
2*a(n) is the smallest m such that 3*(2n-1) | (2^m+1).
LINKS
Muniru A Asiru, Table of n, a(n) for n = 1..10000
FORMULA
a(n) = A216833(n)/2.
MATHEMATICA
Table[MultiplicativeOrder[2, 3*(2*n-1)], {n, 100}]/2 (* T. D. Noe, Sep 19 2012 *)
PROG
(PARI) vector(100, n, znorder(Mod(2, 3*(2*n-1)))/2) \\ Joerg Arndt, Sep 14 2012.
(GAP) List([1..70], n->OrderMod(2, 3*(2*n-1))/2); # Muniru A Asiru, Feb 26 2019
CROSSREFS
KEYWORD
nonn
AUTHOR
V. Raman, Sep 17 2012
STATUS
approved