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Search: id:A155705
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| A155705 |
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Triangle read by rows where T(m,n)=2mn+m+n+2 |
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+0
2
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| 6, 9, 14, 12, 19, 26, 15, 24, 33, 42, 18, 29, 40, 51, 62, 21, 34, 47, 60, 73, 86, 24, 39, 54, 69, 84, 99, 114, 27, 44, 61, 78, 95, 112, 129, 146, 30, 49, 68, 87, 106, 125, 144, 163, 182, 33, 54, 75, 96, 117, 138, 159, 180, 201, 222
(list; table; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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Triangle begin: 6; 9, 14; 12, 19, 26; 15, 24, 33, 42; 18, 29, 40, 51, 62; 21, 34, 47, 60, 73, 86; 24, 39, 54, 69, 84, 99, 114; 27, 44, 61, 78, 95, 112, 129, 146; 30, 49, 68, 87, 106, 125, 144, 163, 182; 33, 54, 75, 96, 117, 138, 159 180, 201, 222;
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CROSSREFS
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Cf. A153043
Sequence in context: A092949 A048626 A002598 this_sequence A036992 A047452 A133796
Adjacent sequences: A155702 A155703 A155704 this_sequence A155706 A155707 A155708
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KEYWORD
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nonn,tabl
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AUTHOR
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Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 25 2009
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