cp's OEIS Frontend

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.

A092283 Triangular array read by rows: T(n,k)=n+k^2, 1<=k<=n.

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%I A092283 #12 Jun 24 2017 10:34:09
%S A092283 2,3,6,4,7,12,5,8,13,20,6,9,14,21,30,7,10,15,22,31,42,8,11,16,23,32,
%T A092283 43,56,9,12,17,24,33,44,57,72,10,13,18,25,34,45,58,73,90,11,14,19,26,
%U A092283 35,46,59,74,91,110,12,15,20,27,36,47,60,75,92,111,132,13,16,21,28,37
%N A092283 Triangular array read by rows: T(n,k)=n+k^2, 1<=k<=n.
%C A092283 T(n,n) = A002378(n+1);
%C A092283 Sum(T(n,k):1<=k<=n) = A000330(n) + A000290(n).
%H A092283 Harvey P. Dale, <a href="/A092283/b092283.txt">Table of n, a(n) for n = 1..1000</a>
%e A092283    2 ;
%e A092283    3   6 ;
%e A092283    4   7  12 ;
%e A092283    5   8  13  20;
%e A092283    6   9  14  21  30;
%e A092283    7  10  15  22  31  42 ;
%e A092283    8  11  16  23  32  43  56 ;
%e A092283    9  12  17  24  33  44  57  72 ;
%e A092283   10  13  18  25  34  45  58  73  90 ;
%e A092283   11  14  19  26  35  46  59  74  91 110 ;
%t A092283 Table[n+k^2,{n,20},{k,n}]//Flatten (* _Harvey P. Dale_, Jun 24 2017 *)
%Y A092283 Cf. A101986 (row sums).
%K A092283 nonn,easy,tabl
%O A092283 1,1
%A A092283 _Reinhard Zumkeller_, Jan 27 2004