A046484 Primes that are palindromic in bases 10 and 16.

2, 3, 5, 7, 11, 353, 787, 94049, 98689, 190080091, 3405684865043, 397922151229793

Offset: 1

Author

Patrick De Geest and Warut Roonguthai Aug 15 1998

Keywords

• nonn
• hard
• base

Comments

Intersection of A002385 and A029732. - Michel Marcus, Jun 09 2013

Examples

			787_10 = 313_16. - _Jon E. Schoenfield_, Apr 10 2021
		

Links

• P. De Geest, World!Of Palindromic Primes

Crossrefs

Cf. A002385, A029731.

Programs

PARI

ispal(v) = {for(i=1, #v\2, if (v[i] != v[#v-i+1], return(0));); return(1);}; lista(nn) = {forprime(p=2, nn, if (ispal(digits(p, 10)) && ispal(digits(p, 16)), print1(p, ", ")););}  \\ Michel Marcus, Jun 09 2013