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A173449
Partial sums of A006894.
0
1, 3, 7, 18, 85, 2364, 2600425, 3374964379317, 5695183504495988993642596, 16217557574922386301420542667438374091771757190157, 131504586847961235687181874578063117114329409897631406061666638548823646377599560502379804093488299
OFFSET
1,2
FORMULA
a(n) = Sum_{i=1..n} A006894(i).
CROSSREFS
Cf. A006894.
Sequence in context: A110578 A134045 A079898 * A270519 A361087 A212848
KEYWORD
nonn
AUTHOR
Jonathan Vos Post, Feb 18 2010
EXTENSIONS
a(11) corrected by Georg Fischer, Aug 28 2020
STATUS
approved