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A205534 Record values of A205531 and A205535. 5
1, 3, 5, 6, 9, 11, 15, 17, 21, 27, 29, 35, 39, 45, 51 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Related to the 4.X Selfridge Conjecture by P. Underwood, cf. link.

Records occur at [p=A205532(n), y=A205534(n)] = [2, 1], [13, 3], [61, 5], [109, 6], [1009, 9], [2689, 11], [8089, 15], [33049, 17], [53881, 21], [87481, 27], [483289, 29], [515761, 35], [1083289, 39], [3818929, 45], [9257329, 51],...

It appears that all records > 6 occur at elements of A102295.

LINKS

Table of n, a(n) for n=1..15.

P. Underwood, 4.X Selfridge Conjecture (on "Prime Pages" profile), Jan 2012.

PROG

(PARI) m=-1; forprime(p=1, default(primelimit), if(m+0<m=max(m, A205535(p), m), print1(m", ")))

CROSSREFS

Sequence in context: A047445 A248638 A248881 * A323115 A285377 A192577

Adjacent sequences:  A205531 A205532 A205533 * A205535 A205536 A205537

KEYWORD

nonn

AUTHOR

M. F. Hasler, Jan 28 2012

STATUS

approved

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Last modified January 26 20:42 EST 2020. Contains 331288 sequences. (Running on oeis4.)