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
KEYWORD
easy,nonn
AUTHOR
Ctibor O. Zizka, Feb 26 2010
EXTENSIONS
More terms from R. J. Mathar, Mar 05 2010
STATUS
approved