A060815 Powers of 2 with each digit a power of 2 (only digits 0,1,2,4,8 are used).

2, 4, 8, 128, 1024, 2048

Offset: 1

Author

Amarnath Murthy, Apr 27 2001

Keywords

• nonn
• base
• fini
• full

Comments

Presumably a(6) is the last term. If a(7) exists it is greater than 2^1000000. - Charles R Greathouse IV, Apr 09 2012

Examples

			a(3) = 128 = 2^7, each digit of 128 is a power of 2.
		

Crossrefs

Cf. A130696.

Extensions

Next term > 2^105 - Larry Reeves (larryr(AT)acm.org), May 09 2001