A060427 Smallest prime p such that there are n strings of consecutive integers all having products = 1 mod p.

2, 11, 17, 23, 71, 71, 599, 599, 3011, 27901, 52163, 778699, 2374649, 10428007

Offset

1,1

Links

Table of n, a(n) for n=1..14.

C. Rivera, Prime Puzzles

Example

For n = 2 we have 3*4 = 5*6*7 = 1 mod 11. For n = 3 we have 2*3*4*5 = 6*7*8*9*10*11 = 12*13*14*15 = 1 mod 17.

Crossrefs

Sequence in context: A336368 A282509 A225590 * A108894 A233445 A066794

Adjacent sequences: A060424 A060425 A060426 * A060428 A060429 A060430

Keyword

nonn,nice

Author

Jason Earls, Apr 05 2001

Extensions

More terms from Jens Kruse Andersen, May 04 2007

Status

approved