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 A037125 Irregular triangle: row n is 1, 2, 3, 4, .., prime(n). 0
 1, 2, 1, 2, 3, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 1, 2, 3, 4, 5, 6, 7, 8, 9 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE From Omar E. Pol, May 29 2012: (Start) Written as an irregular triangle the sequence begins: 1, 2; 1, 2, 3; 1, 2, 3, 4, 5; 1, 2, 3, 4, 5, 6, 7; 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11; 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13; Row n has length A000040(n). (End) MATHEMATICA Flatten@Range@Prime@Range[9] (* Arkadiusz Wesolowski, Jul 02 2012 *) CROSSREFS Cf. A002260. Sequence in context: A243613 A194844 A138528 * A194029 A194055 A162192 Adjacent sequences:  A037122 A037123 A037124 * A037126 A037127 A037128 KEYWORD nonn,easy,tabf AUTHOR Vasiliy Danilov (danilovv(AT)usa.net) Jun 15 1998 STATUS approved

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Last modified April 25 21:06 EDT 2019. Contains 322461 sequences. (Running on oeis4.)