A058202 Triangle in which n-th row gives the numbers which when subtracted from 2^n produce primes.

1, 2, 1, 3, 5, 6, 3, 5, 9, 11, 13, 14, 1, 3, 9, 13, 15, 19, 21, 25, 27, 29, 30, 3, 5, 11, 17, 21, 23, 27, 33, 35, 41, 45, 47, 51, 53, 57, 59, 61, 62, 1, 15, 19, 21, 25, 27, 31, 39, 45, 49, 55, 57, 61, 67, 69, 75, 81, 85, 87, 91, 97, 99, 105, 109, 111, 115, 117, 121, 123, 125

Offset

2,2

Links

Table of n, a(n) for n=2..72.

Example

1,2; 1,3,5,6; 3,5,9,11,13,14; 1,3,9,13,15,19,21,25,27,29,30; ...
and 16 - {3,5,9,11,13,14} are all primes.

Crossrefs

Sequence in context: A179382 A161169 A239738 * A327452 A257982 A275705

Adjacent sequences: A058199 A058200 A058201 * A058203 A058204 A058205

Keyword

nonn,tabf,easy

Author

N. J. A. Sloane, Nov 29 2000

Extensions

More terms from Larry Reeves (larryr(AT)acm.org) and James A. Sellers, Nov 30 2000

Status

approved