A064157 Primes p such that (x1*x2*..xk)^(x1+x2+..xk)=(x1+x2+..xk)^(x1*x2*...xk) where x1x2..xk are the digits of p in base 10.
2, 3, 5, 7, 211, 2141, 2411, 4211, 11251, 12511, 15121, 21221, 25111, 1112171, 1127111, 1172111, 1271111, 7112111, 11112811, 11128111, 11218111, 12111811, 12118111, 12181111, 18211111, 81111211, 81112111, 1111411141, 4111111141, 4111411111
Offset: 1
Examples
211 belongs to the sequence because (2*1*1)^(2+1+1)=(2+1+1)^(2*1*1)
Extensions
More terms from Jason Earls, Dec 05 2001
a(18)-a(30) from Sean A. Irvine, Jun 16 2023