A235008 Primes which become fourth powers when the digits are rotated once to the right.

61, 46411, 84163, 8904817, 21173611, 38458411, 47763361, 67772161, 78506251, 378906259, 464100001, 777963217, 1462287361, 1713506251, 3308633611, 3700508017, 3874880011, 5733506257, 6000000001, 6981816811, 7827420163, 12945881761, 17139110563, 21735672019

Offset

1,1

Links

Giovanni Resta, Table of n, a(n) for n = 1..325 terms < 10^16

Example

The prime 21173611 is in the sequence because 12117361 = 59^4.

Prog

(PARI) rotr(a) = if(a<10, a, eval(Str(a%10, a\10)))
s=[]; forprime(n=2, 500000000, if(ispower(rotr(n), 4), s=concat(s, n))); s

Crossrefs

Cf. A235009.

Sequence in context: A337726 A057998 A182384 * A058996 A116124 A068533

Adjacent sequences: A235005 A235006 A235007 * A235009 A235010 A235011

Keyword

nonn,base

Author

Colin Barker, Jan 02 2014

Extensions

a(12)-a(24) from Giovanni Resta, Jan 02 2014

Status

approved