A089569 Primes arising in A089568.
13, 113, 2113, 192113, 3192113, 83192113, 1583192113, 181583192113, 10181583192113, 1710181583192113, 451710181583192113, 24451710181583192113, 2224451710181583192113, 112224451710181583192113
Offset: 1
This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.