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A162613
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Triangle read by rows in which row n lists n terms, starting with n, with gaps = n^2-1 between successive terms.
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9
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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)
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OFFSET
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1,2
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COMMENTS
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Note that the last term of the n-th row is A100104(n).
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LINKS
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Table of n, a(n) for n=1..61.
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EXAMPLE
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Triangle begins:
1;
2, 5;
3,11,19;
4,19,34,49;
5,29,53,77,101;
6,41,76,111,146,181;
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CROSSREFS
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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
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KEYWORD
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easy,nonn,tabl
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AUTHOR
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Omar E. Pol, Jul 09 2009
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EXTENSIONS
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More terms from Vincenzo Librandi, Aug 02 2010
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STATUS
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approved
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