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 A239092 #9 Mar 20 2019 04:24:27 %S A239092 0,0,0,0,0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,9,10,11,12,13,14,15,16,17,18, %T A239092 18,19,20,21,22,23,24,25,26,27,27,28,29,30,31,32,33,34,35,36,36,37,38, %U A239092 39,40,41,42,43,44,45,45,46,47,48,49,50,51,52,53,54,54,55,56,57,58,59,60,61,62,63,63,64,65,66,67,68,69,70,71,72,72,73,74,75,76,77,78,79,80,81,81,83,85,87,89,91,93,95,97,99,100,102,104,106,108,110 %N A239092 Prefix overlap of dictionary consisting of decimal expansions of 0 through n. %C A239092 The prefix overlap between two words is the length of their longest common prefix. %C A239092 The prefix overlap of a dictionary is the sum of the prefix overlaps between successive words. %C A239092 Partial sums of A076489. %C A239092 More than the usual number of terms are displayed in order to distinguish this from some closely related sequences. %H A239092 Rodica Simion and Herbert S. Wilf, <a href="https://doi.org/10.1137/0607054">The distribution of prefix overlap in consecutive dictionary entries</a>, SIAM J. Algebraic Discrete Methods, 7(1986), no. 3, 470--475. MR0844051. %Y A239092 Cf. A238845, A239091, A076489. %Y A239092 Different from A081600 and A028904. %K A239092 nonn,base %O A239092 1,12 %A A239092 _N. J. A. Sloane_, Mar 22 2014