A066595 - OEIS

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A066595

Primes which can be expressed as concatenation of powers of 4 and 0's.

0

11, 41, 101, 401, 641, 1601, 4001, 4111, 4441, 10111, 10141, 11161, 11411, 14011, 14401, 14411, 16001, 16111, 16141, 16411, 25601, 40111, 40961, 41011, 41141, 41161, 41411, 41611, 41641, 44041, 44101, 44111

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..32.

EXAMPLE

641 is a term as it is a concatenation of 64 and 1 which are powers of 4.

CROSSREFS

Sequence in context: A132208 A233434 A261538 * A260266 A195117 A027086

Adjacent sequences: A066592 A066593 A066594 * A066596 A066597 A066598

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