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Search: id:A146882
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| A146882 |
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Sum of power terms sequence: a(n)=Sum[5*4^m, {m, 0, n}]. |
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1
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| 5, 25, 105, 425, 1705, 6825, 27305, 109225, 436905, 1747625, 6990505, 27962025, 111848105, 447392425, 1789569705, 7158278825, 28633115305, 114532461225, 458129844905, 1832519379625, 7330077518505, 29320310074025
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OFFSET
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0,1
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FORMULA
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a(n)=Sum[5*4^m, {m, 0, n}].
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MATHEMATICA
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Clear[a, n]; a[n_] = Sum[5*4^m, {m, 0, n}]; Table[a[n], {n, 0, 30}]
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CROSSREFS
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A100774
Sequence in context: A022729 A098111 A083877 this_sequence A067971 A111641 A074419
Adjacent sequences: A146879 A146880 A146881 this_sequence A146883 A146884 A146885
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KEYWORD
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nonn
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Nov 02 2008
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