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 A175151 a(n) = Sum_{i=1..n} ((i+1)^i - 1)/i. 1
 1, 5, 26, 182, 1737, 21345, 320938, 5701778, 116812889, 2710555349, 70256770866, 2011763864406, 63066746422417, 2148275748236033, 79009709388692498, 3120334201617871778, 131703367127423550129, 5916556161455825857509, 281857608793034773225930 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS G. C. Greubel, Table of n, a(n) for n = 1..350 FORMULA a(n) = Sum_{i=1..n+1} A060072(i). - R. J. Mathar, Mar 05 2010 a(n) = Sum_{j=1..n} (j+1)^j/j - H(n), where H(n) is the n-th harmonic number. - G. C. Greubel, Aug 16 2022 MATHEMATICA Accumulate[Table[((i+1)^i-1)/i, {i, 20}]] (* Harvey P. Dale, Jul 08 2017 *) PROG (Magma) [(&+[((j+1)^j -1)/j: j in [1..n]]): n in [1..30]]; // G. C. Greubel, Aug 16 2022 (SageMath) [sum((j+1)^j -1)/j for j in (1..n)) for n in (1..30)] # G. C. Greubel, Aug 16 2022 CROSSREFS Cf. A000169, A023037, A037205, A060072. Sequence in context: A179513 A302896 A368176 * A121750 A143341 A303970 Adjacent sequences: A175148 A175149 A175150 * A175152 A175153 A175154 KEYWORD easy,nonn AUTHOR Ctibor O. Zizka, Feb 26 2010 EXTENSIONS More terms from R. J. Mathar, Mar 05 2010 STATUS approved

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Last modified September 8 09:26 EDT 2024. Contains 375753 sequences. (Running on oeis4.)