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Search: id:A119426
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| A119426 |
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Concatenation of 3 or more numbers in arithmetic progression with positive common difference. |
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+0
2
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| 123, 135, 147, 159, 234, 246, 258, 345, 357, 369, 456, 468, 567, 579, 678, 789, 1234, 1357, 1611, 1713, 1815, 1917, 2345, 2468, 2610, 2712, 2814, 2916, 3456, 3579, 3711, 3813, 3915, 4567, 4710, 4812, 4914, 5678, 5811, 5913, 6789, 6810, 6912, 7911, 8910
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Leading zeros are not permitted. This sequence, A119427 and the three-digit and larger terms of A010785 are subsequences of A034840.
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EXAMPLE
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159 is the concatenation of 1, 5 and 9, which have common difference (c.d.) 4.
The term 12345, the concatenation of 1, 2, 3, 4 and 5 (c.d. 1), is also the concatenation of 1, 23 and 45 (with c.d. 22).
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CROSSREFS
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Cf. A119427, A010785, A034840.
Sequence in context: A125097 A077378 A031509 this_sequence A138059 A153254 A001703
Adjacent sequences: A119423 A119424 A119425 this_sequence A119427 A119428 A119429
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KEYWORD
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base,nonn
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AUTHOR
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Rick L. Shepherd (rshepherd2(AT)hotmail.com), May 22 2006
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