A002752 - OEIS

A002752

a(n) = Fibonacci(n-1) mod n.

0, 1, 1, 2, 3, 5, 1, 5, 3, 4, 0, 5, 1, 9, 2, 2, 1, 13, 0, 1, 3, 12, 1, 1, 18, 15, 1, 26, 0, 29, 0, 29, 12, 2, 22, 17, 1, 1, 29, 26, 0, 13, 1, 13, 33, 2, 1, 1, 21, 49, 37, 18, 1, 23, 47, 13, 39, 30, 0, 41, 0, 1, 62, 34, 8, 49, 1, 5, 3, 54, 0, 1, 1, 39, 7, 2, 74

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,4

LINKS

T. D. Noe, Table of n, a(n) for n=1..5000

MATHEMATICA

Table[Mod[Fibonacci[n], n+1], {n, 6!}] (* Vladimir Joseph Stephan Orlovsky, Feb 18 2010 *)

PROG

(Sage)

def A002752(n): return mod(fibonacci(n - 1), n)

# Assuming offset 0 this prepends a(0) = 1.

print([A002752(n) for n in range(79)]) # Peter Luschny, Apr 11 2022