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A130289 Record values in A130280: minima of { m>1 | (2n+1)^2(m^2-1)+1 is a square} bigger than for all preceding n. 2
3, 5, 7, 11, 13, 19, 21, 29, 31, 169, 419, 461, 3269, 7127, 3877019, 22783559, 215308729 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Most elements of this sequence seem to be 1,2 or 4 times a prime.
LINKS
PROG
(PARI) A130289( L=999, S=1 )={ local( R, T ); for( n=S, L, if( issquare(n) || R >= T = A130280(n), next ); print1( T ", " ); R=T )}
CROSSREFS
Sequence in context: A287437 A126991 A264754 * A071329 A109358 A216285
KEYWORD
nonn
AUTHOR
M. F. Hasler, May 24 2007
STATUS
approved

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Last modified March 29 06:57 EDT 2024. Contains 371265 sequences. (Running on oeis4.)