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.

A094483 Primes of form 2^j + 179^j.

Original entry on oeis.org

2, 181, 1026625697, 1110832290554380967776058484990830657
Offset: 1

Views

Author

Labos Elemer, Jun 01 2004

Keywords

Comments

No additional terms through j=1000. - Harvey P. Dale, Apr 24 2013
The number j must be zero or a power of 2. Checked j being powers of two through 2^19. Thus a(5) > 10^2300000. Primes of this magnitude are rare (about 1 in 5.4 million), so chance of finding one is remote with today's computer algorithms and speeds. - Robert Price, May 05 2013

Crossrefs

Programs

  • Mathematica
    Select[Table[2^j+179^j, {j,0,30}], PrimeQ] (* Harvey P. Dale, Apr 24 2013 *)

A094484 Primes of form 2^j + 461^j.

Original entry on oeis.org

2, 463, 45165175457, 4161163747708008324368372925882377717624897
Offset: 1

Views

Author

Labos Elemer, Jun 01 2004

Keywords

Comments

The number j must be zero or a power of 2. Checked j being powers of two through 2^19. Thus a(5) > 10^2700000. Primes of this magnitude are rare (about 1 in 6.4 million), so chance of finding one is remote with today's computer algorithms and speeds. - Robert Price, Apr 29 2013

Examples

			The relevant exponents are powers of 2: 0, 1, 4, 16; a(4) = 65536+461^16 = 4161163747708008324368372925882377717624897.
		

Crossrefs

Showing 1-2 of 2 results.