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 A165195 #5 Apr 30 2013 13:24:07 %S A165195 1,1,2,1,2,5,2,1,2,5,15,5,2,5,2,1,2,5,15,5,15,52,15,5,2,5,15,5,2,5,2,1 %N A165195 Rows of triangle A165194 tend to this sequence; generated from A000110. %F A165195 The sequence can be generated from strings of 2^n terms starting (1, 1,... then the next string of 2^(n+1) terms is obtained by appending a "reverse and increment" substring to the previous substring. %e A165195 Given terms in the Bell sequence, A000110; A165195 begins (1, 1, 2, 1,... then to obtain the first 2^3 terms, the first 2^2 terms = (1, 1, 2, 1,... then append to the latter the reversal of (1, 1, 2, 1) = (1, 2, 1, 1) but incremented with the next higher Bell number = (2, 5, 2, 1). The first 2^3 terms are thus (1, 1, 2, 1, 2, 5, 2, 1). Repeat with analogous operations to obtain 2^4 terms, and so on.. %Y A165195 Cf. A000110, A165194, A165196. %K A165195 nonn %O A165195 1,3 %A A165195 _Gary W. Adamson_, Sep 06 2009