This site is supported by donations to The OEIS Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A113460 Triangle read by rows: n-th row is the lexicographically earliest arithmetic progression of n numbers all having the same prime signature. 5
 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; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Presumably this triangle will differ from that in A130791 after some point. - N. J. A. Sloane, Sep 22 2007 Apart from the initial term, this sequence coincides with A130791 for at least the first 210 rows. - David W. Wilson, Sep 22 2007 LINKS EXAMPLE Triangle begins: 1 2,3 3,5,7 5,11,17,23 5,11,17,23,29 7,37,67,97,127,157 CROSSREFS Cf. A113459 (leading terms). Cf. A007918, A086786, A113459, A113461, A130791, A127781. Sequence in context: A180611 A084127 A089934 * A113470 A086786 A211890 Adjacent sequences:  A113457 A113458 A113459 * A113461 A113462 A113463 KEYWORD nonn,tabl AUTHOR David Wasserman, Jan 08 2006 EXTENSIONS Erroneous commas in sequence deleted by N. J. A. Sloane, Sep 22 2007 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified January 18 03:13 EST 2019. Contains 319260 sequences. (Running on oeis4.)