A205534 Record values of A205531 and A205535.

1, 3, 5, 6, 9, 11, 15, 17, 21, 27, 29, 35, 39, 45, 51

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: A341349 A248638 A248881 * A323115 A285377 A192577

Adjacent sequences: A205531 A205532 A205533 * A205535 A205536 A205537

Keyword

nonn

Author

M. F. Hasler, Jan 28 2012

Status

approved