login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A071554 Smallest x > 1 such that x^prime(n) == 1 mod(prime(i)) 2<=i<=n. 0
4, 16, 106, 1156, 15016, 255256, 4849846, 111546436, 3234846616, 100280245066, 3710369067406, 152125131763606, 6541380665835016, 307444891294245706, 16294579238595022366, 961380175077106319536, 58644190679703485491636 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

FORMULA

a(n)=(1/2)*(A006862(n)+1)

CROSSREFS

Sequence in context: A136793 A009630 A131043 * A087335 A204573 A094356

Adjacent sequences:  A071551 A071552 A071553 * A071555 A071556 A071557

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), May 30 2002

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 12:05 EST 2012. Contains 205782 sequences.