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 1-3 of 3 results.

A182366 Records in A194217.

Original entry on oeis.org

8, 10, 24, 36, 60, 64, 84, 114, 124, 144, 202, 226, 228
Offset: 1

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Author

Vladimir Shevelev, Apr 26 2012

Keywords

Comments

Records in A194217(n) occur at n = 2, 4, 10, 14, 43, 95, 145, 167, 287, 415, 560, 635, 982,...

Crossrefs

Cf. A104272, A080359, A193507, A194184, A194186, A194217.

A182391 Numbers n for which A104272(n) = A080359(n).

Original entry on oeis.org

1, 9, 11, 18, 22, 23, 25, 30, 32, 34, 35, 37, 38, 41, 46, 47, 48, 49, 52, 53, 54, 63, 64, 66, 70, 75, 76, 79, 80, 82, 84, 94, 98, 99, 101, 102, 105, 108, 109, 110, 113, 114, 115, 124, 127, 128, 131, 135, 136, 139, 140, 148, 149, 150, 151, 154, 156, 158, 160
Offset: 1

Views

Author

Vladimir Shevelev, Apr 27 2012

Keywords

Comments

Number m is in the sequence iff 1) there exists only composite number k such that 2*k-1 is prime and A060715(k)=m; 2) there is no prime p such that 2*p-1 is prime and A060715(p)=m-1.

Crossrefs

Cf. A104272, A080359, A164554, A193507, A194184, A194186, A194217, A182366.

Formula

A194217(n)=0.

A182392 Numbers n for which there exists only composite number k such that A060715(k) = n and 2*k-1 is prime, but A104272(n) differs from A080359(n).

Original entry on oeis.org

3, 8, 36, 55, 58, 83, 129, 134, 143, 155, 186, 197, 207, 218, 269, 295, 309, 310, 361, 362, 380, 396, 412, 454, 466, 473, 505, 511, 514, 544, 549, 556, 563, 616, 631, 660, 666, 677, 683, 697, 771, 781, 788, 797, 812, 873, 874, 881, 883, 894, 906, 953
Offset: 1

Views

Author

Vladimir Shevelev and Peter J. C. Moses, Apr 27 2012

Keywords

Comments

There exists a prime p=p(n) such that 2*p-1 is prime and A060715(p)=a(n)-1 (cf. comment in A182391).

Crossrefs

Cf. A104272, A080359, A164554, A193507, A194184, A194186, A194217, A182366, A182391.
Showing 1-3 of 3 results.

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