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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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A341161 The sum of the prime digits of m and the sum of the nonprime digits of m differ by n.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 9, 19, 119, 48, 49, 68, 69, 88, 89, 99, 199, 488, 489, 499, 689, 699, 889, 899, 999, 1999, 4889, 4899, 4999, 6899, 6999, 8899, 8999, 9999, 19999, 48899, 48999, 49999, 68999, 69999, 88999, 89999, 99999, 199999, 488999
Offset: 1

Views

Author

Carole Dubois and Eric Angelini, Feb 06 2021

Keywords

Comments

This is the lexicographically earliest sequence of distinct terms > 0 with this property.
The nonprime digits are 0, 1, 4, 6, 8 and 9; the prime digits are 2, 3, 5 and 7. After a(7) = 7 no more terms will show a prime digit.

Examples

			The sequence:     1, 2, 3, 4, 5, 6, 7, 8, 9, 19, 119, 48,...
Sum of prime dig. 0  2  3  0  5  0  7  0  0   0    0   0
Sum of nonprimes  1  0  0  4  0  6  0  8  9  10   11  12
Difference (= n)  1  2  3  4  5  6  7  8  9  10   11  12

Links

Crossrefs

Cf. A085562, A085563, A341011.
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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