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.

A208271 Nonprime numbers containing a digit 1.

Original entry on oeis.org

1, 10, 12, 14, 15, 16, 18, 21, 51, 81, 91, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 128, 129, 130, 132, 133, 134, 135, 136, 138, 140, 141, 142, 143, 144, 145, 146, 147, 148, 150, 152, 153
Offset: 1

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Author

Jaroslav Krizek, Mar 04 2012

Keywords

Comments

Subsequence of A011531. Complement of A208270 with respect to A011531.

Crossrefs

Cf. A208270 (primes containing a digit 1), A011531 (numbers containing a digit 1).

Programs

  • Mathematica
    Select[Range[200], ! PrimeQ[#] && MemberQ[IntegerDigits[#], 1] &] (* T. D. Noe, Mar 06 2012 *)