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 A131318 #11 Jul 10 2015 19:56:48 %S A131318 1,2,8,30,24,120,156,126,96,234,640,88,264,416,700,630,352,680,468, %T A131318 304,1200,294,572,1150,528,2600,2288,1998,1176,290,3660,806,1344,1122, %U A131318 1360,2870,792,2960,532,2262,2400,1722,1764,3870,1056,5490,2300,1598 %N A131318 Sum of terms within one periodic pattern of that sequence representing the digital sum analog base n of the Fibonacci recurrence. %C A131318 The respective period lengths are given by A001175(n-1) (which is the Pisano period to n-1) for n>=2. %e A131318 a(3)=8 since the digital sum analog base 3 of the Fibonacci sequence is 0,1,1,2,3,3,2,3,3,... where the pattern {2,3,3} is the periodic part (see A131294) and sums up to 2+3+3=8. a(4)=30 because the pattern base 4 is {2,3,5,5,4,3,4,4} (see A131295) which sums to 30. %Y A131318 Cf. A000045, A131319, A131320. %Y A131318 See A010073, A010074, A010075, A010076, A010077, A131294, A131295, A131296, A131297 for the definition of the digital sum analog of the Fibonacci sequence (in different bases). %K A131318 nonn,base %O A131318 1,2 %A A131318 _Hieronymus Fischer_, Jul 03