login
A066593
Primes which can be expressed as concatenation of powers of 2 and 0's.
2
2, 11, 41, 101, 181, 211, 241, 281, 401, 421, 641, 811, 821, 881, 1021, 1181, 1201, 1321, 1481, 1601, 1621, 1801, 1811, 2011, 2081, 2111, 2141, 2161, 2221, 2281, 2411, 2441, 2801, 3221, 4001, 4021, 4111, 4201, 4211, 4241, 4421, 4441, 4481
OFFSET
1,1
EXAMPLE
1321 is a term as it is a concatenation of 1, 32 and 1 which are powers of 2.
CROSSREFS
Sequence in context: A080093 A175447 A078746 * A173580 A062256 A024522
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, Dec 21 2001
EXTENSIONS
Corrected and extended by Christopher Lund (clund(AT)san.rr.com), Apr 14 2002
STATUS
approved