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 A378064 #6 Nov 19 2024 00:51:28 %S A378064 1,0,57,352,1185,2976,6265,11712,20097,32320,49401,72480,102817, %T A378064 141792,190905,251776,326145,415872,522937,649440,797601,969760, %U A378064 1168377,1396032,1655425,1949376,2280825,2652832,3068577,3531360,4044601,4611840,5236737,5923072 %N A378064 a(n) = 5*n^4 - 6*n^2 + 1. Column 4 of A378066. %F A378064 a(n) = [x^n] (-57*x^3 - 67*x^2 + 5*x - 1)/(x - 1)^5. %p A378064 seq(5*n^4 - 6*n^2 + 1, n = 0..33); %o A378064 (Python) %o A378064 def A378064(n): return (m:=n**2)*(5*m-6)+1 # _Chai Wah Wu_, Nov 18 2024 %Y A378064 Cf. A378066. %K A378064 nonn %O A378064 0,3 %A A378064 _Peter Luschny_, Nov 17 2024