A112727 a(n) is the least integer m greater than one such that m^n is a palindrome.

2, 2, 2, 2, 11

Offset

0,1

Comments

There is no further term up to 10^8.

Links

Table of n, a(n) for n=0..4.

Example

a(4)=11 because 11^4=14641 and for 1<i<11, i^4 is not a palindrome.

Mathematica

a[n_]:=(For[m=2, !FromDigits[Reverse[IntegerDigits[m^n]]] ==m^n, m++ ]; m); Table[a[n], {n, 0, 4}]

Crossrefs

Sequence in context: A165466 A175392 A289910 * A164918 A147822 A316497

Adjacent sequences: A112724 A112725 A112726 * A112728 A112729 A112730

Keyword

base,nonn

Author

Farideh Firoozbakht, Nov 13 2005

Status

approved