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Partial sums of A006894.
0

%I #7 Aug 28 2020 06:16:18

%S 1,3,7,18,85,2364,2600425,3374964379317,5695183504495988993642596,

%T 16217557574922386301420542667438374091771757190157,

%U 131504586847961235687181874578063117114329409897631406061666638548823646377599560502379804093488299

%N Partial sums of A006894.

%F a(n) = Sum_{i=1..n} A006894(i).

%Y Cf. A006894.

%K nonn

%O 1,2

%A _Jonathan Vos Post_, Feb 18 2010

%E a(11) corrected by _Georg Fischer_, Aug 28 2020