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A036173
Log base 2 (n) mod 61.
0
0, 1, 6, 2, 22, 7, 49, 3, 12, 23, 15, 8, 40, 50, 28, 4, 47, 13, 26, 24, 55, 16, 57, 9, 44, 41, 18, 51, 35, 29, 59, 5, 21, 48, 11, 14, 39, 27, 46, 25, 54, 56, 43, 17, 34, 58, 20, 10, 38, 45, 53, 42, 33, 19, 37, 52, 32, 36, 31, 30
OFFSET
1,3
REFERENCES
I. M. Vinogradov, Elements of Number Theory, p. 223.
LINKS
I. M. Vinogradov, Elements of Number Theory, Translation of 5th revised edition, Dover Publications Inc., 1954.
FORMULA
Row n=18 of T(n,k) in A054503. - Georg Fischer, Jan 19 2020
MAPLE
a:= n-> numtheory[mlog](n, 2, 61):
seq(a(n), n=1..60); # Alois P. Heinz, Aug 21 2021
MATHEMATICA
a[1]=0; a[n_]:=MultiplicativeOrder[2, 61, {n}]; Array[a, 60] (* Vincenzo Librandi, Mar 12 2020 *)
CROSSREFS
Cf. A054503.
Sequence in context: A169632 A201445 A090033 * A142707 A305874 A176965
KEYWORD
nonn,fini,full
AUTHOR
EXTENSIONS
a(59)-a(60) from Georg Fischer, Jan 19 2020
STATUS
approved