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.

A201022 Primes whose multiplicative digital root is 8.

Original entry on oeis.org

29, 67, 79, 83, 97, 149, 163, 167, 179, 181, 197, 199, 229, 233, 241, 263, 337, 373, 419, 421, 433, 461, 491, 499, 613, 617, 631, 641, 661, 719, 733, 761, 811, 881, 883, 919, 941, 971, 991, 1129, 1163, 1181, 1229, 1237, 1291, 1327, 1361, 1373, 1381, 1399, 1423
Offset: 1

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Author

Jaroslav Krizek, Nov 25 2011

Keywords

Comments

Complement of A201023 with respect to A034055.

Examples

			Prime 149 is in the sequence because 1*4*9=36, 3*6=18, 1*8=8.

Links

Crossrefs

Cf. A201023 (composite numbers whose multiplicative digital root is 8), A034055 (numbers whose multiplicative digital root is 8).

A201056 Composite numbers whose product of digits is 8.

Original entry on oeis.org

8, 18, 24, 42, 81, 118, 124, 142, 214, 222, 412, 1118, 1124, 1142, 1214, 1222, 1241, 1412, 1421, 2114, 2122, 2212, 4112, 4121, 11118, 11124, 11142, 11181, 11214, 11222, 11241, 11412, 11421, 11811, 12114, 12122, 12141, 12212, 12221, 12411, 14112, 14121, 14211
Offset: 1

Views

Author

Jaroslav Krizek, Nov 26 2011

Keywords

Comments

Complement of A107694 with respect to A199989. Subsequence of A201023 (composite numbers whose multiplicative digital root is 8).

Examples

			Number 124 is in sequence because 1*2*4=8.

Crossrefs

Cf. A107694 (primes whose product of digits is 8), A199989 (numbers whose product of digits is 8).
Showing 1-2 of 2 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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