A327025 a(n) = Sum_{k=0..n} k! * Sum_{d|n} phi(d) * A008284(n/d, k).

1, 1, 4, 11, 40, 165, 930, 6109, 47364, 416259, 4092332, 44424105, 527512456, 6798907261, 94504292830, 1408973416983, 22426222792568, 379522092608193, 6804315178122972, 128828842646944153, 2568533750232696472, 53788282243854348683, 1180357162840669081094

Offset

0,3

Links

Table of n, a(n) for n=0..22.

Crossrefs

Row sums of A327028.

Sequence in context: A149268 A214142 A077236 * A228190 A289283 A152532

Adjacent sequences: A327022 A327023 A327024 * A327026 A327027 A327028

Keyword

nonn

Author

Peter Luschny, Aug 23 2019

Status

approved