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.

A173619 Differences between consecutive pseudoprimes to base 2.

Original entry on oeis.org

220, 84, 460, 282, 342, 176, 142, 418, 236, 120, 456, 756, 336, 2, 310, 780, 1140, 1356, 364, 160, 430, 1350, 324, 720, 1496, 940, 6, 234, 510, 1218, 132, 864, 2000, 16, 1230, 3050, 376, 2384, 3580, 780
Offset: 1

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Author

Karl Hovekamp, Feb 22 2010

Keywords

Comments

These are the differences between the numbers in sequence A001567.

Examples

			341, 561, 645, 1105, .... (sequence A001567)
abs(341-561)=220
abs(561-645)=84
abs(645-1105)=460
....
		

Crossrefs

Cf. A001567.