cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-2 of 2 results.

A205534 Record values of A205531 and A205535.

Original entry on oeis.org

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

Views

Author

M. F. Hasler, Jan 28 2012

Keywords

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.

Programs

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

A205532 Primes at which occur records of A205531 and A205535.

Original entry on oeis.org

2, 13, 61, 109, 1009, 2689, 8089, 33049, 53881, 87481, 483289, 515761, 1083289, 3818929, 9257329
Offset: 1

Views

Author

M. F. Hasler, Jan 28 2012

Keywords

Comments

Related to the 4.X Selfridge Conjecture by P. Underwood, cf. link.
Records occur at [A205532(n), 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 a(n)=A102295(n+1) for n>4; they are also terms of A002224 and A096637.

Programs

  • PARI
    m=-1; forprime(p=1,default(primelimit), if(m+0A205535(p),m), print1(p",")))
Showing 1-2 of 2 results.