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Search: id:A113460
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| A113460 |
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Triangle read by rows: n-th row is the lexicographically earliest arithmetic progression of n numbers all having the same prime signature. |
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+0
6
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| 1, 2, 3, 3, 5, 7, 5, 11, 17, 23, 5, 11, 17, 23, 29, 7, 37, 67, 97, 127, 157, 7, 157, 307, 457, 607, 757, 907, 11, 1210241, 2420471, 3630701, 4840931, 6051161, 7261391, 8471621, 11, 32671181, 65342351, 98013521, 130684691, 163355861, 196027031
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Presumably this triangle will differ from that in A130791 after some point. - N. J. A. Sloane (njas(AT)research.att.com), Sep 22 2007
Apart from the initial term, this sequence coincides with A130791 for at least the first 210 rows. - David W. Wilson (davidwwilson(AT)comcast.net), Sep 22 2007
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LINKS
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Index entries for sequences related to primes in arithmetic progressions
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EXAMPLE
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Triangle begins:
1
2,3
3,5,7
5,11,17,23
5,11,17,23,29
7,37,67,97,127,157
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CROSSREFS
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Cf. A113459 (leading terms).
Cf. A007918, A086786, A113459, A113461, A130791, A127781.
Sequence in context: A066072 A084127 A089934 this_sequence A113470 A086786 A047844
Adjacent sequences: A113457 A113458 A113459 this_sequence A113461 A113462 A113463
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KEYWORD
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nonn,tabl
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AUTHOR
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David Wasserman (dwasserm(AT)earthlink.net), Jan 08 2006
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EXTENSIONS
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Erroneous commas in sequence deleted by N. J. A. Sloane (njas(AT)research.att.com), Sep 22 2007
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