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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A097619 Numbers having more prime factors than each of their neighbors.

Original entry on oeis.org

4, 6, 8, 12, 16, 18, 20, 24, 30, 32, 36, 40, 42, 48, 50, 52, 54, 56, 60, 64, 66, 68, 70, 72, 78, 80, 84, 88, 90, 92, 96, 100, 102, 104, 108, 110, 112, 114, 120, 126, 128, 130, 132, 138, 140, 144, 150, 152, 156, 160, 162, 168, 176, 180, 182, 184, 186, 189, 192, 196
Offset: 1

Views

Author

Reinhard Zumkeller, Aug 17 2004

Keywords

Comments

Even terms are much more frequent. Among first 10000 terms exactly 612 are odd. First odd terms are 189, 243, 315, 405, 525, 567, 675; corresponding indices are 58, 77, 102, 130, 169, 182, 216. - Zak Seidov, Mar 06 2015

Examples

			A001222(50)=A001222(2*5*5)=3 > A001222(50-1)=A001222(7*7)=2 and A001222(50) > A001222(50+1)=A001222(3*17)=2, therefore 50 is a term.

Links

Crossrefs

Cf. A097620, A076082, A001222.
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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