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A337918
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Rearrangement of natural numbers so that next n numbers contain n as substring.
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3
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1, 2, 12, 3, 13, 23, 4, 14, 24, 34, 5, 15, 25, 35, 45, 6, 16, 26, 36, 46, 56, 7, 17, 27, 37, 47, 57, 67, 8, 18, 28, 38, 48, 58, 68, 78, 9, 19, 29, 39, 49, 59, 69, 79, 89, 10, 100, 101, 102, 103, 104, 105, 106, 107, 108, 11, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119
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OFFSET
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1,2
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COMMENTS
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This sequence first differ from A075383 for n = 67: a(67) = 120 whereas A075383(67) = 12.
This sequence is a permutation of the natural numbers with inverse A337919.
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LINKS
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EXAMPLE
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As a triangle, the first rows are:
1: 1
2: 2, 12
3: 3, 13, 23
4: 4, 14, 24, 34
5: 5, 15, 25, 35, 45
6: 6, 16, 26, 36, 46, 56
7: 7, 17, 27, 37, 47, 57, 67
8: 8, 18, 28, 38, 48, 58, 68, 78
9: 9, 19, 29, 39, 49, 59, 69, 79, 89
10: 10, 100, 101, 102, 103, 104, 105, 106, 107, 108
11: 11, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119
12: 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 212, 312
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PROG
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(Perl) See Links section.
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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