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Search: id:A119713
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| A119713 |
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First differences are 2, 5, 5, 9, 9, 9, 14, 14, 14, 14, ..., that is, A000096 with m-th term repeated m times (m>=1). |
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+0
1
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| 0, 2, 7, 12, 21, 30, 39, 53, 67, 81, 95, 115, 135, 155, 175, 195, 222, 249, 276, 303, 330, 357, 392, 427, 462, 497, 532, 567, 602, 646, 690, 734, 778, 822, 866, 910, 954, 1008, 1062, 1116, 1170, 1224, 1278, 1332, 1386, 1440, 1505, 1570, 1635, 1700, 1765, 1830
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OFFSET
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0,2
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REFERENCES
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David Pagni, Building buildings with triangular numbers, AMATYC Review (vol. 27 no. 2 spring 2006, pp. 56-65).
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MATHEMATICA
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a = 10; lst = {0}; s = 0; t = Flatten@ Table[ Table[n*(n + 3)/2, {n}], {n, a}]; Do[ AppendTo[lst, s = s + t[[n]]], {n, a(a+1)/2}]; lst - Robert G. Wilson v (rgwv(at)rgwv.com), Jun 16 2006
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CROSSREFS
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Adjacent sequences: A119710 A119711 A119712 this_sequence A119714 A119715 A119716
Sequence in context: A133459 A023669 A137401 this_sequence A135541 A122264 A079824
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KEYWORD
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nonn
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AUTHOR
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njas, Jun 13 2006
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(at)rgwv.com), Jun 16 2006
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