Records in the numbers of representations of k^2 as x^2 - x*y + y^2, x > 2*y >= 0, corresponding to the numbers of grid points with squared radius A357302(n)^2 in an angular sector 0 <= phi < Pi/6 of the triangular lattice.
A357303
Records in the numbers of representations of k^2 as x^2 - x*y + y^2, x > 2*y >= 0, corresponding to the numbers of grid points with squared radius A357302(n)^2 in an angular sector 0 <= phi < Pi/6 of the triangular lattice.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =5a(4) =8a(5) =14a(6) =23a(7) =41a(8) =68a(9) =122a(10) =203a(11) =365a(12) =608a(13) =851a(14) =1094a(15) =1823a(16) =2552a(17) =3281a(18) =5468a(19) =7655a(20) =9842a(21) =16403a(22) =22964a(23) =29525a(24) =49208a(25) =68891a(26) =82013a(27) =88574a(28) =114818a(29) =147623
External references
- oeis: A357303