A077720 Primes which can be expressed as sum of distinct powers of 6.

7, 37, 43, 223, 1297, 1303, 1549, 7993, 9109, 46663, 54469, 55987, 281233, 326593, 327889, 335917, 1679653, 1679659, 1679833, 1680919, 1681129, 1687393, 1726273, 1726489, 1727569, 1727827, 1734049, 1960891, 1961107, 1967587, 2006461

Offset: 1

Author

Amarnath Murthy, Nov 19 2002

Keywords

• nonn

Comments

Primes whose base 6 representation contains only zeros and 1's.

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A020449, A000695, A033043, A077717, A077718, A077719, A077721, A077722.

Programs

Mathematica

Select[FromDigits[#,6]&/@Tuples[{0,1},9],PrimeQ] (* Harvey P. Dale, May 01 2018 *)

Extensions

More terms from Sascha Kurz, Jan 03 2003