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A163524 The pairs (x,y) such that x^2 = 1+factorial(y). 1
5, 4, 11, 5, 71, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
The main entry for this relation is the bisection in A146968.
LINKS
EXAMPLE
71^2 = 7!+1, which introduces (71,7) into the sequence.
CROSSREFS
Sequence in context: A285105 A360682 A089520 * A330614 A051552 A165367
KEYWORD
nonn,less
AUTHOR
Vincenzo Librandi, Jul 30 2009
EXTENSIONS
Reference to main sequence added by R. J. Mathar, Aug 02 2009
STATUS
approved

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Last modified April 14 11:07 EDT 2024. Contains 371657 sequences. (Running on oeis4.)