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A123197
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(2*n+1)*(n+1)*(2*n^2+3*n-1).
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0
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-1, 24, 195, 728, 1935, 4224, 8099, 14160, 23103, 35720, 52899, 75624, 104975, 142128, 188355, 245024, 313599, 395640, 492803, 606840, 739599, 893024, 1069155, 1270128, 1498175, 1755624, 2044899, 2368520, 2729103, 3129360, 3572099, 4060224, 4596735, 5184728, 5827395, 6528024
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| Fredrick T. Wall, Chemical Thermodynamics, W. H, Freeman, San Francisco, 1965, page 269
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FORMULA
| a(n)-a(n-1) = (4*n + 1)*(4*n^2 + 2*n - 1).
G.f.: (-1+29*x+65*x^2+3*x^3)/(1-x)^5. [Colin Barker, Jan 28 2012]
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MATHEMATICA
| f[m_] = Sum[(4*n + 1)*(4*n^2 + 2*n - 1), {n, 0, m}]; a = Table[f[n], {n, 0, 50}]
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CROSSREFS
| Sequence in context: A047057 A066406 A042114 * A125361 A126519 A198396
Adjacent sequences: A123194 A123195 A123196 * A123198 A123199 A123200
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KEYWORD
| sign,easy
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AUTHOR
| Roger Bagula (rlbagulatftn(AT)yahoo.com), Oct 04 2006
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EXTENSIONS
| Definition made precise by the Assoc. Eds. of the OEIS, Mar 27 2010
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