A216179 a(n) = 10^n + 3.

13, 103, 1003, 10003, 100003, 1000003, 10000003, 100000003, 1000000003, 10000000003, 100000000003, 1000000000003, 10000000000003, 100000000000003, 1000000000000003, 10000000000000003, 100000000000000003, 1000000000000000003, 10000000000000000003

Offset

1,1

Comments

1 followed by n - 1 0's followed by 3

Links

Table of n, a(n) for n=1..19.

Markus Tervooren, Factorizations of 1(0)w3

Formula

a(n) = 10a(n - 1) - 27 with n > 1, a(1) = 13.

Mathematica

Table[10^n + 3, {n, 1, 19}]
NestList[10# - 27 &, 13, 18]

Crossrefs

Cf. A049054.

Sequence in context: A228213 A220734 A268991 * A240804 A100277 A087398

Adjacent sequences: A216176 A216177 A216178 * A216180 A216181 A216182

Keyword

nonn,easy

Author

Ivan Panchenko, Mar 10 2013

Status

approved