A245593 a(n) = (R_n)^n.

1, 121, 1367631, 1523548331041, 169342410709747836551, 1881665133128606900860142518161, 2090750117762021873788017450039922462386871, 232305712669729896500117628007183171975956078054818623681, 2581174768482624149493549155062886015819364354785066837288515125486819591, 2867971987924469323820403313431021627485478704243749999500499658223600043001340850612575601

Offset

1,2

Comments

R_n is the repdigit 11...111 with n 1's.

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..30

Example

1^1 = 1.
11^2 = 121.
111^3 = 1367631.
etc..

Mathematica

 Table[((10^n - 1)/9)^n, {n, 10}] (* Vincenzo Librandi, Jul 27 2014 *)

Prog

(PARI) a(N) = for(n=1, N, print1(((10^n-1)/9)^n, ", ")) \\ vary the program's range for any N
(Magma) [((10^n-1)/9)^n: n in [1..10]]; // Vincenzo Librandi, Jul 27 2014

Crossrefs

Cf. A002275.

Sequence in context: A317197 A082215 A123179 * A053885 A068490 A077735

Adjacent sequences: A245590 A245591 A245592 * A245594 A245595 A245596

Keyword

nonn,easy

Author

Derek Orr, Jul 27 2014

Status

approved