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.

Previous Showing 11-16 of 16 results.

A089571 Primes arising in A089570.

Original entry on oeis.org

17, 317, 6317, 26317, 126317, 21126317, 3521126317, 433521126317, 23433521126317, 3423433521126317, 473423433521126317, 10473423433521126317, 2610473423433521126317, 42610473423433521126317
Offset: 1

Views

Author

Ray Chandler, Nov 22 2003

Keywords

Crossrefs

Cf. A089710, A089711, A089560-A089573.

A089572 a(1) = 19. For n > 1, a(n) is the least unused number such that every concatenation a(n)a(n-1)...a(2)a(1) is prime.

Original entry on oeis.org

19, 4, 5, 3, 7, 9, 15, 14, 1, 60, 26, 28, 6, 20, 13, 74, 30, 111, 45, 12, 16, 11, 31, 102, 144, 72, 27, 65, 33, 79, 21, 77, 147, 91, 47, 96, 37, 2, 106, 200, 46, 54, 44, 75, 141, 126, 165, 178, 63, 36, 51, 78, 210, 170, 85, 143, 183, 70, 48, 83, 225, 411, 142, 461, 270, 124
Offset: 1

Views

Author

Ray Chandler, Nov 22 2003

Keywords

Comments

Is this a rearrangement of the natural numbers?

Crossrefs

Cf. A089710, A089711, A089560-A089573.

Extensions

Edited by Charles R Greathouse IV, Apr 29 2010

A089563 Primes arising in A089562.

Original entry on oeis.org

7, 17, 317, 6317, 26317, 2126317, 102126317, 9102126317, 89102126317, 3789102126317, 203789102126317, 25203789102126317, 2925203789102126317, 722925203789102126317, 28722925203789102126317
Offset: 1

Views

Author

Ray Chandler, Nov 22 2003

Keywords

Crossrefs

Cf. A089710, A089711, A089560-A089573.

A089565 Concatenations arising in A089564.

Original entry on oeis.org

9, 19, 419, 5419, 35419, 735419, 12735419, 1112735419, 131112735419, 42131112735419, 2642131112735419, 102642131112735419, 17102642131112735419, 1617102642131112735419, 201617102642131112735419
Offset: 1

Views

Author

Ray Chandler, Nov 22 2003

Keywords

Crossrefs

Cf. A089710, A089711, A089560-A089573.

A089567 Primes arising in A089566.

Original entry on oeis.org

11, 211, 4211, 34211, 534211, 9534211, 19534211, 3019534211, 63019534211, 2063019534211, 162063019534211, 8162063019534211, 248162063019534211, 15248162063019534211, 1315248162063019534211, 391315248162063019534211
Offset: 1

Views

Author

Ray Chandler, Nov 22 2003

Keywords

Crossrefs

Cf. A089710, A089711, A089560-A089573.

A089569 Primes arising in A089568.

Original entry on oeis.org

13, 113, 2113, 192113, 3192113, 83192113, 1583192113, 181583192113, 10181583192113, 1710181583192113, 451710181583192113, 24451710181583192113, 2224451710181583192113, 112224451710181583192113
Offset: 1

Views

Author

Ray Chandler, Nov 22 2003

Keywords

Crossrefs

Cf. A089710, A089711, A089560-A089573.
Previous Showing 11-16 of 16 results.

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

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