A232235
Primes that can be written in binary representation as concatenation of two primes: p and p-2. That is, primes representable as p * 2^L + p-2, where p and p-2 are primes, and L is the length of binary representation of p-2: L = A070939(p-2).
Original entry on oeis.org
23, 61, 1021, 139021, 145177, 222127, 2645257, 2706727, 2928019, 3050959, 3997597, 38695537, 45086077, 49903561, 50247667, 53688727, 56294101, 545636617, 556450387, 558023299, 563331877, 563921719, 581616979, 582993277, 607570027, 619956709, 638045197, 660262579
Offset: 1
A232236
Primes that can be written in binary representation as concatenation of two primes: p and p+2. That is, primes representable as p * 2^L + p+2, where p and p+2 are primes, and L is the length of binary representation of p+2: L = A070939(p+2).
Original entry on oeis.org
29, 47, 563, 9161, 137999, 2149403, 2358401, 3526331, 41776109, 43250849, 46347803, 51607709, 53819819, 55540349, 59866253, 62176679, 539082821, 545571083, 546947381, 625199753, 627165893, 629525261, 650169731, 654102011, 680644901, 687526391, 688509461, 690082373
Offset: 1
Showing 1-2 of 2 results.
Comments