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 A194678 #5 Mar 30 2012 18:57:43 %S A194678 1,1,0,4,4,2,0,6,4,1,10,8,4,0,11,7,2,16,12,7,1,17,12,5,24,18,11,3,24, %T A194678 17,8,32,24,15,5,31,22,11,0,29,18,6,38,27,14,1,35,22,8,45,32,17,2,41, %U A194678 27,11,53,38,22,5,49,33,15,62,45,27,8,57,39,19,71,52,32,11,66,46 %N A194678 Number of k in [1,n] for which <n*e>+<k*e> > 1, where < > = fractional part; row sums of A164677. %t A194678 r = E; z = 15; %t A194678 p[x_] := FractionalPart[x]; f[x_] := Floor[x]; %t A194678 w[n_, k_] := p[r^n] + p[r^k] - p[r^n + r^k] %t A194678 Flatten[Table[w[n, k], {n, 1, z}, {k, 1, n}]] %t A194678 (* A194675 *) %t A194678 TableForm[Table[w[n, k], {n, 1, z}, {k, 1, n}]] %t A194678 s[n_] := Sum[w[n, k], {k, 1, n}] (* A194676 *) %t A194678 Table[s[n], {n, 1, 100}] %t A194678 h[n_, k_] := f[p[n*r] + p[k*r]] %t A194678 Flatten[Table[h[n, k], {n, 1, z}, {k, 1, n}]] %t A194678 (* A194677 *) %t A194678 TableForm[Table[h[n, k], {n, 1, z}, {k, 1, n}]] %t A194678 t[n_] := Sum[h[n, k], {k, 1, n}] %t A194678 Table[t[n], {n, 1, 100}] (* A194678 *) %Y A194678 Cf. A194677. %K A194678 nonn %O A194678 1,4 %A A194678 _Clark Kimberling_, Sep 01 2011