A057674 Primes -p+2^n with smallest p prime, arising in A057674.

-3, 2, 5, 13, 29, 61, 109, 251, 509, 1021, 2029, 4093, 8179, 16381, 32749, 65519, 131059, 262139, 524269, 1048573, 2097133, 4194301, 8388571, 16777213, 33554371, 67108859, 134217649, 268435367, 536870909, 1073741783, 2147483629, 4294967291, 8589934513, 17179869143

Offset

0,1

Links

Table of n, a(n) for n=0..33.

Example

n=1, 2^1=2. If 2,3,5 are subtracted from 2, then 0,-1 and -3 arise, of which -3 is a prime so a(1)=-3. n=11, 2048-p=q. At first p=29 gives the prime q=2029.

Crossrefs

Cf. A056206, A056208, A056662, A057674.

Sequence in context: A374428 A290427 A265759 * A092935 A137455 A111273

Adjacent sequences: A057671 A057672 A057673 * A057675 A057676 A057677

Keyword

sign

Author

Labos Elemer, Oct 19 2000

Status

approved