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.

A357890 a(n) = (A022013(n) - 173)/210.

Original entry on oeis.org

422, 1355, 4074, 5460, 31242, 329316, 353648, 1038255, 1246060, 1440679, 4593664, 6382389, 6669205, 6773694, 8748381, 9343041, 10085055, 10711252, 10819136, 12181959, 12804411, 13683806, 14044105, 15616253, 19232028, 20795482, 21014272, 25076295, 26366476, 27457318
Offset: 1

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Author

Hugo Pfoertner, Nov 18 2022

Keywords

Comments

Linear conversion of the initial members of prime octuplets of type p + {0, 6, 8, 14, 18, 20, 24, 26}.
Numbers k such that 210*k+173, 210*k+179, 210*k+181, 210*k+187, 210*k+191, 210*k+193, 210*k+197, and 210*k+199 are all primes. - Jianing Song, Nov 18 2022

Links

Crossrefs

Cf. A022011, A022012, A022013.
Cf. A182393 (similar for type p + {0, 2, 6, 8, 12, 18, 20, 26}).
Cf. A145315 (minus 1, similar for type p + {0, 2, 6, 12, 14, 20, 24, 26}).
Subsequence of A357889.

A178565 Numbers n for which the set {210*n-19, 210*n-17, 210*n-13, 210*n-11, 210*n-1, 210*n+1, 210*n+11, 210*n+13, 210*n+17, 210*n+19} forms a symmetrical prime decuplet (also known as Federighi cluster).

Original entry on oeis.org

189111589, 316283205, 340596403, 1363676123, 2288631107, 2548484492, 3761774969, 5693215546, 5806904514, 5983441966, 6153368797, 6435606987, 6909440949, 6955203039, 7216006868, 7582600736, 7657322028, 9403678002
Offset: 1

Views

Author

Andrey V. Kulsha, May 29 2010

Keywords

Comments

n is always +/- 4 (mod 11).

Links

Crossrefs

Cf. A145315
Showing 1-2 of 2 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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