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 A324914 a(n) = Sum_{k=1..n} 2^k * tau(k), where tau(k) = A000005(k). 2
 2, 10, 26, 74, 138, 394, 650, 1674, 3210, 7306, 11402, 35978, 52362, 117898, 248970, 576650, 838794, 2411658, 3460234, 9751690, 18140298, 34917514, 51694730, 185912458, 286575754, 555011210, 1091882122, 2702494858, 3776236682, 12366171274 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Partial sums of A323351 with n=0 term of A323351 omitted. - Robert Israel, Jun 27 2019 LINKS Robert Israel, Table of n, a(n) for n = 1..3314 Eric Weisstein's World of Mathematics, Divisor Function MAPLE ListTools:-PartialSums([seq(2^k*numtheory:-tau(k), k=1..100)]); # Robert Israel, Jun 27 2019 MATHEMATICA Accumulate[Table[2^k*DivisorSigma[0, k], {k, 1, 30}]] CROSSREFS Cf. A000005, A006218, A101509, A160399, A324915, A323351. Sequence in context: A099969 A241688 A183331 * A025589 A084182 A321240 Adjacent sequences:  A324911 A324912 A324913 * A324915 A324916 A324917 KEYWORD nonn AUTHOR Vaclav Kotesovec, Mar 18 2019 STATUS approved

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Last modified January 26 11:13 EST 2020. Contains 331279 sequences. (Running on oeis4.)