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 A373510 #17 Jun 11 2024 08:15:25
%S A373510 1,1,1,1,1,1,6,11,16,21,26,106,211,341,496,676,2256,4611,7866,12146,
%T A373510 17576,51781,106761,188266,302671,456976,1236306,2552661,4602416,
%U A373510 7620071,11881376,30218956,62278561,114056566,193134346,308915776,749942856,1540351961
%N A373510 Expansion of 1/(1 - x/(1 - 25*x^5)^(1/5)).
%F A373510 a(5*n) = 26^(n-1) for n > 0.
%F A373510 a(n) = Sum_{k=0..floor(n/5)} 25^k * binomial(n/5-1,k).
%F A373510 a(n) == 1 (mod 5).
%o A373510 (PARI) a(n) = sum(k=0, n\5, 25^k*binomial(n/5-1, k));
%Y A373510 Cf. A066872, A098615, A371458, A373511.
%K A373510 nonn
%O A373510 0,7
%A A373510 _Seiichi Manyama_, Jun 07 2024