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Search: id:A160378
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| 0, 5, 21, 54, 110, 195, 315, 476, 684, 945, 1265, 1650, 2106, 2639, 3255, 3960, 4760, 5661, 6669, 7790, 9030, 10395, 11891, 13524, 15300, 17225, 19305, 21546, 23954, 26535, 29295, 32240, 35376, 38709, 42245, 45990
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OFFSET
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1,2
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COMMENT
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Partial sums of A045944.0,5,16,33,56,85,120,161,208,261,320,385,456,533,616,705,800,.. [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 25 2009]
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MATHEMATICA
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f[n_]:=6*n+5; s1=s2=0; lst={}; Do[a=f[n]; s1+=a; s2+=s1; AppendTo[lst, s2], {n, 0, 6!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 25 2009]
Table[Sum[(n^2 - i), {i, 1, n}], {n, 1, 36}] [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jul 11 2009]
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CROSSREFS
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a(4)=54 because 4^3-(1+2+3+4)=64-10=54.
Sequence in context: A039659 A147238 A147834 this_sequence A096942 A122244 A146854
Adjacent sequences: A160375 A160376 A160377 this_sequence A160379 A160380 A160381
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KEYWORD
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nonn
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AUTHOR
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Gil Broussard (gilbroussard(AT)bellsouth.net), May 11 2009
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