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 A037051 #18 Sep 07 2025 11:09:46
%S A037051 2,2664662,9826289,4128458548214
%N A037051 Palindromic product of some n with sum of next n consecutive integers.
%C A037051 Values of n see A037050.
%C A037051 a(5) > 7.5*10^37, if it exists. - _Giovanni Resta_, Aug 26 2019
%e A037051 2664662 = 121 * (122 + 123 + ... + 241 + 242) = 121 * 22022.
%t A037051 Select[Table[n^2/2*(1+3n),{n,15000}],PalindromeQ] (* _Harvey P. Dale_, Sep 07 2025 *)
%Y A037051 Cf. A036659, A037050.
%K A037051 nonn,base,hard,more,changed
%O A037051 1,1
%A A037051 _Patrick De Geest_, Jan 04 1999