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.

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A053303 Length of maximal prime gap p_{k+1} - p_k with starting prime p_k < 10^n.

Original entry on oeis.org

4, 8, 20, 36, 72, 114, 154, 220, 282, 354, 464, 540, 674, 804, 906, 1132
Offset: 1

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Author

Enoch Haga, Mar 05 2000

Keywords

Comments

Prime gaps associated with A053302.
a(17) is probably 1220 and a(19) is probably 1296. - Robert G. Wilson v, Mar 16 2004

Examples

			a(1) = 4 from 7 to 11. a(2) = 8 from 89 to 97. a(3) = 20 from 887 to 907.
a(5)=72 because the 5-digit prime 31397 begins a gap of 72.
		

Crossrefs

p_k's are in A053302. Cf. A005250, A002386. Essentially the same as A038460.

Extensions

a(16) from Eric W. Weisstein, Mar 05 2004

A241540 Indices of primes p in A182514, i.e., a(n) = primepi(p) = A000720(A182514(n)).

Original entry on oeis.org

1, 2, 4, 30, 217, 49749629143526
Offset: 1

Views

Author

M. F. Hasler, Apr 25 2014

Keywords

Comments

a(6) = A214935(33) = A000720(A205827(33)).

Crossrefs

Showing 1-2 of 2 results.