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 A272079 #9 Mar 13 2020 16:57:43 %S A272079 1,2,3,6,10,26,30,86,154,350,514,1542,1930,5882,9086,16242,30098, %T A272079 93474,116174,368318,547218,1050842,1813030,5703414,7256850,19610282, %U A272079 33509306,77004470,122302250,393465466,399187282,1302847262,2380228834,4947581482,8604927394 %N A272079 Row sums of A238453. %H A272079 Tom Edgar, <a href="http://www.emis.de/journals/INTEGERS/papers/o62/o62.Abstract.html">Totienomial Coefficients</a>, INTEGERS, 14 (2014), #A62. %o A272079 (Sage) P=[euler_phi(i) for i in [0..100]] %o A272079 Tr=[[prod(P[1:n+1])/(prod(P[1:k+1])*prod(P[1:(n-k)+1])) for k in [0..n]] for n in [0..len(P)-1]] %o A272079 print([sum(x) for x in Tr]) %Y A272079 Cf. A000010, A238453. %K A272079 nonn %O A272079 0,2 %A A272079 _Tom Edgar_, Apr 19 2016