A265043 The n-th Champernowne prime (A176942) is found by concatenating the successive digits of the numbers 1,2,3,...,a(n) and possibly dropping some of final digits of a(n).

10, 12, 17, 115, 971, 1364, 9711

Offset

1,1

Links

Table of n, a(n) for n=1..7.

Example

The third Champernowne prime A176942(3) = 123456789101112131415161 is obtained by concatenating the digits of the numbers 1,2,3,4,...,17, and then dropping the final digit; thus a(3) = 17.

Crossrefs

See A176942 for the Champernowne primes, A071620 for number of digits.

See also A007908.

Sequence in context: A063096 A270819 A031183 * A158871 A359074 A247626

Adjacent sequences: A265040 A265041 A265042 * A265044 A265045 A265046

Keyword

nonn,more,base

Author

N. J. A. Sloane, Dec 26 2015

Status

approved