A264908 - OEIS

A264908

Primes of the form 2^i + 2^j + 2^k - 1, i > j > k > 0.

13, 37, 41, 43, 73, 83, 97, 103, 137, 139, 151, 163, 167, 193, 199, 223, 521, 523, 547, 577, 607, 641, 643, 647, 769, 1033, 1063, 1091, 1103, 1153, 1283, 1543, 1567, 1663, 2053, 2081, 2083, 2087, 2113, 2143, 2179, 2207, 2239, 2311, 2591, 2687, 3079, 3583, 4129, 4231, 4639

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..51.

MATHEMATICA

Select[ Flatten[ Table[2^i + 2^j + 2^k - 1, {i, 3, 10}, {j, 2, i - 1}, {k, j - 1}]], PrimeQ]

CROSSREFS

Cf. A000668, A095077, A239712.

Sequence in context: A225131 A357444 A118361 * A281004 A088963 A301591

Adjacent sequences: A264905 A264906 A264907 * A264909 A264910 A264911

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Nov 28 2015

STATUS

approved