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 A054056 #7 Jul 02 2025 16:01:59
%S A054056 29,31,35,37,41,47,49,59,61,71,79,85,101,119,127,139,157,161,185,191,
%T A054056 211,229,239,269,271,301,317,335,367,371,409,421,449,479,491,535,541,
%U A054056 581,607,629,677,679,731,751,785,829,841,899,911,959,997,1021,1085
%N A054056 Numbers of form 29+n^2+n or 29+2*n^2.
%e A054056 29 + 30 = 59 and 29 + 32 = 61
%t A054056 With[{nn=60},Take[Union[Flatten[Table[{n^2+n+29,2n^2+29},{n,0,nn}]]], nn]] (* _Harvey P. Dale_, May 28 2014 *)
%Y A054056 Cf. A052293 etc.
%K A054056 nonn,easy
%O A054056 1,1
%A A054056 Stuart M. Ellerstein (ellerstein(AT)aol.com), Apr 28 2000
%E A054056 More terms from _James Sellers_, Apr 30 2000