A046484 Primes that are palindromic in bases 10 and 16.

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

Offset

1,1

Comments

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

Links

Table of n, a(n) for n=1..12.

P. De Geest, World!Of Palindromic Primes

Example

787_10 = 313_16. - Jon E. Schoenfield, Apr 10 2021

Prog

(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

Crossrefs

Cf. A002385, A029731.

Sequence in context: A046481 A082625 A030286 * A346168 A062888 A046483

Adjacent sequences: A046481 A046482 A046483 * A046485 A046486 A046487

Keyword

nonn,hard,base

Author

Patrick De Geest and Warut Roonguthai Aug 15 1998

Status

approved