A089780 Lexicographically earliest sequence of nonnegative integers such that concatenation of n terms beginning with a(n) is prime.

2, 0, 2, 0, 11, 0, 3, 0, 17, 0, 3, 0, 21, 0, 71, 0, 3, 0, 29, 0, 9, 0, 3, 0, 3, 0, 19, 0, 51, 0, 31, 0, 1, 0, 41, 0, 21, 0, 87, 0, 29, 0, 27, 0, 39, 0, 69, 0, 21, 0, 3, 0, 73, 0, 3, 0, 163, 0, 51, 0, 83, 0, 1, 0, 61, 0, 43, 0, 89, 0, 77, 0, 49, 0, 11, 0, 213, 0, 177, 0, 109, 0, 307, 0, 3, 0, 61, 0, 27, 0, 119

Offset

1,1

Links

Table of n, a(n) for n=1..91.

Formula

a(2n)=0

Example

2,02,2011,01103,1103017 etc. are primes.

Crossrefs

Sequence in context: A363025 A300073 A113400 * A136668 A057498 A137949

Adjacent sequences: A089777 A089778 A089779 * A089781 A089782 A089783

Keyword

base,nonn

Author

Amarnath Murthy, Nov 24 2003

Extensions

Corrected and extended by Max Alekseyev, Feb 03 2010

Status

approved