a(n) gives one fourth of the even leg of the second of the two Pythagorean triangles with hypotenuse A080109(n) = A002144(n)^2. The odd leg is given in A253804.
A253805
a(n) gives one fourth of the even leg of the second of the two Pythagorean triangles with hypotenuse A080109(n) = A002144(n)^2. The odd leg is given in A253804.
Terms
- a(0) =5a(1) =30a(2) =34a(3) =145a(4) =111a(5) =180a(6) =371a(7) =330a(8) =876a(9) =1560a(10) =1746a(11) =505a(12) =1635a(13) =840a(14) =3014a(15) =3570a(16) =5181a(17) =2249a(18) =1710a(19) =7980a(20) =1379a(21) =3435a(22) =10920a(23) =7230a(24) =2056a(25) =8970a(26) =14490a(27) =11240a(28) =4981a(29) =3900
External references
- oeis: A253805