A036173 Log base 2 (n) mod 61.

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

Table of n, a(n) for n=1..60.

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

Adjacent sequences: A036170 A036171 A036172 * A036174 A036175 A036176

Keyword

nonn,fini,full

Author

N. J. A. Sloane.

Extensions

a(59)-a(60) from Georg Fischer, Jan 19 2020

Status

approved