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.

A113759 Triangle read by rows: row n lists first n noncomposite numbers, starting with 1, in increasing order, whose sum is A113495(n).

Original entry on oeis.org

1, 1, 3, 1, 3, 5, 1, 3, 5, 7, 1, 3, 5, 7, 11, 1, 3, 5, 7, 11, 37, 1, 3, 5, 7, 11, 37, 61, 1, 3, 5, 7, 11, 37, 61, 131, 1, 3, 5, 7, 11, 37, 61, 131, 1931, 1, 3, 5, 7, 11, 37, 61, 131, 1931, 14197, 1, 3, 5, 7, 11, 37, 61, 131, 1931, 14197, 144667, 1, 3, 5, 7, 11, 37, 61, 131, 1931, 14197, 144667, 23945242826029513411849172299223580994042798783957733, 1, 3, 5, 7, 11, 37, 61, 131, 1931, 14197, 144667
Offset: 1

Views

Author

Giovanni Teofilatto, Jan 18 2006

Keywords

Examples

			Triangle begins:
1
1 3
1 3 5
1 3 5 7
1 3 5 7 11
1 3 5 7 11 37
1 3 5 7 11 37 61
1 3 5 7 11 37 61 131
		

Crossrefs

Cf. A113495.

A137354 Lexicographically earliest subsequence of the perfect powers in A001597 such that first differences are an increasing sequence of primes.

Original entry on oeis.org

1, 4, 9, 16, 27, 64, 125, 196, 12167, 28224, 68921, 115600, 177147, 244036, 421875, 614656, 970299, 1378276, 2460375, 3556996, 4657463, 5760000, 9129329, 12531600, 16974593, 21436900, 26730899, 32035600, 39135393, 46240000, 53582633
Offset: 1

Views

Author

R. J. Mathar, Mar 07 2008

Keywords

Crossrefs

A variant of A113495. Partial sums of A137355.

Programs

Extensions

a(22)-a(32) from Robert G. Wilson v, Apr 20 2010
Showing 1-2 of 2 results.