Numbers occurring in three Pythagorean triples of the form: odd: a, (a^2-1)/2, (a^2+1)/2 or even: a, a^2/4-1, a^2/4+1.
A111766
Numbers occurring in three Pythagorean triples of the form: odd: a, (a^2-1)/2, (a^2+1)/2 or even: a, a^2/4-1, a^2/4+1.
Terms
- a(0) =0a(1) =5a(2) =24a(3) =145a(4) =840a(5) =4901a(6) =28560a(7) =166465a(8) =970224a(9) =5654885a(10) =32959080a(11) =192099601a(12) =1119638520a(13) =6525731525a(14) =38034750624a(15) =221682772225
External references
- oeis: A111766