This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A162613 Triangle read by rows in which row n lists n terms, starting with n, with gaps = n^2-1 between successive terms. 9
 1, 2, 5, 3, 11, 19, 4, 19, 34, 49, 5, 29, 53, 77, 101, 6, 41, 76, 111, 146, 181, 7, 55, 103, 151, 199, 247, 295, 8, 71, 134, 197, 260, 323, 386, 449, 9, 89, 169, 249, 329, 409, 489, 569, 649, 10, 109, 208, 307, 406, 505, 604, 703, 802, 901, 11, 131, 251, 371, 491, 611 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Note that the last term of the n-th row is A100104(n). LINKS EXAMPLE Triangle begins: 1; 2, 5; 3,11,19; 4,19,34,49; 5,29,53,77,101; 6,41,76,111,146,181; CROSSREFS Cf. A000578, A100104, A159797, A159798, A162610, A162611, A162612. Cf. A100855 (row sums). [From R. J. Mathar, Jul 20 2009] Sequence in context: A129198 A122442 A225258 * A120858 A124937 A169852 Adjacent sequences:  A162610 A162611 A162612 * A162614 A162615 A162616 KEYWORD easy,nonn,tabl AUTHOR Omar E. Pol, Jul 09 2009 EXTENSIONS More terms from Vincenzo Librandi, Aug 02 2010 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .