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 A077295 #9 May 14 2025 17:46:18 %S A077295 12,34,56,78,910,1112,1314,1516,1718,1920,212,22,32,4,252,6,272,8, %T A077295 2930,3132,3334,3536,3738,3940,414,24,344,454,64,74,84,950,5152,5354, %U A077295 5556,5758,5960,616,26,36,46,566,676,86,970,7172,7374,7576,7778,7980,818,28,38,48,58,68,788,8990,9192,9394,9596,9798,99100 %N A077295 Partition the concatenation 1234567...of natural numbers into successive strings which are even, all different and > 2. (0 never taken as the most significant digit.) %Y A077295 Cf. A077293, A077294, A077296, A077297, A077298, A077299, A077300, A077301, A077302. %K A077295 base,nonn %O A077295 1,1 %A A077295 _Amarnath Murthy_, Nov 03 2002 %E A077295 Corrected and extended by Kyle Shearer (kss198(AT)psu.edu), Mar 14 2006 %E A077295 More terms from _Franklin T. Adams-Watters_, May 30 2006 %E A077295 Offset changed by _Sean A. Irvine_, May 14 2025