A216596 a(n) has n! 1's

1, 1, 11, 111111, 111111111111111111111111

Offset

0,3

Comments

a(5) has 120 digits and is too large to include.

Links

Table of n, a(n) for n=0..4.

Formula

a(n) = Sum_{0<=k<n!} 10^k.

Prog

(PARI) a(n)=10^n!\9 \\ Charles R Greathouse IV, Dec 27 2012

Crossrefs

Sequence in context: A199169 A145571 A049193 * A079558 A111478 A300196

Adjacent sequences: A216593 A216594 A216595 * A216597 A216598 A216599

Keyword

nonn,easy,less

Author

Jon Perry, Sep 09 2012

Status

approved