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.
%I A083394 #10 Dec 15 2017 17:36:19 %S A083394 2,11,101,111,212,313,515,10001,10101,11111,12121,20102,21112,23132, %T A083394 24142,32123,36163,42124,44144,63136,69196,77177,96169,99199,1000001, %U A083394 1001001,1011101,1041401,1101011,1111111,1131311,1141411,1221221 %N A083394 Terms of A083393 such that the sum of the factorials of the digits is prime. %H A083394 Chai Wah Wu, <a href="/A083394/b083394.txt">Table of n, a(n) for n = 1..10000</a> %e A083394 E.g. 313. 3!+1!+3!=6+1+6=13. 13 is prime. %Y A083394 Cf. A083393. %K A083394 nonn,base %O A083394 1,1 %A A083394 Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jun 11 2003 %E A083394 More terms from _Jason Earls_, Jun 12 2003