A158209 The number of consecutive prime pairs with 10-gap in n-th century.

0, 2, 2, 1, 2, 2, 1, 2, 2, 1, 3, 2, 1, 0, 1, 0, 1, 1, 2, 0, 4, 1, 0, 0, 0, 1, 1, 3, 1, 1, 1, 1, 0, 1, 0, 4, 0, 2, 2, 0, 0, 0, 6, 3, 1, 0, 1, 0, 1, 2, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 3, 2, 3, 1, 1, 1, 2, 0, 1, 1, 1, 1, 1, 1, 2, 0, 0, 0, 0, 1, 1, 2, 2, 0, 2, 0, 0, 2, 1, 1, 0, 1, 0, 2, 1, 1, 0, 0, 1, 1, 1, 0, 2, 1

Offset

1,2

Links

Table of n, a(n) for n=1..105.

Example

Of 14 primes in 10th century, only 919 and 929 are consecutive primes with 10-gap, so a(10)=1.

Crossrefs

Sequence in context: A131714 A130196 A230866 * A234538 A119646 A024693

Adjacent sequences: A158206 A158207 A158208 * A158210 A158211 A158212

Keyword

nonn

Author

Ki Punches, Mar 13 2009

Extensions

Edited and corrected by Ray Chandler, May 23 2009

Status

approved