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 A078871 #5 Jun 24 2014 01:08:33
%S A078871 242462,246264,246266,246626,264242,264246,264264,264626,264666,
%T A078871 266424,266466,266646,424626,424662,462462,462642,462646,462664,
%U A078871 462666,466264,466266,466626,624626,626424,626426,626462,626466,626642,626646,626664,642462,642466,642646,646246,646264,646266,646626,646662,662642,662646,662664,662666,664246,664626,664662,666264,666266,666462
%N A078871 Decimal concatenations of the 6-tuples (d1,d2,d3,d4,d5,d6) with elements in {2,4,6} for which there exists a prime p >= 7 such that the differences between the 7 consecutive primes starting with p are (d1,d2,d3,d4,d5,d6).
%e A078871 For 424662, the first 2 primes with the given differences are 37 and 25767877. For 646626, the least start prime is 6268957.
%Y A078871 The least primes corresponding to the 6-tuples are in A078874. The same primes, in increasing order, are in A078875. The similarly defined quadruples and quintuples are in A078868 and A078870. Cf. A001223, A078869.
%K A078871 nonn,fini,full,base
%O A078871 1,1
%A A078871 _Labos Elemer_, Dec 20 2002
%E A078871 Edited by _Dean Hickerson_, Dec 21 2002