a(n) is smallest natural number a satisfying Pell equation a^2 - d(n)*b^2= +1 or = -1, with d(n)=A000037(n) (a nonsquare). Corresponding smallest b(n)=A077233(n).
A077232
a(n) is smallest natural number a satisfying Pell equation a^2 - d(n)*b^2= +1 or = -1, with d(n)=A000037(n) (a nonsquare). Corresponding smallest b(n)=A077233(n).
Terms
- a(0) =1a(1) =2a(2) =2a(3) =5a(4) =8a(5) =3a(6) =3a(7) =10a(8) =7a(9) =18a(10) =15a(11) =4a(12) =4a(13) =17a(14) =170a(15) =9a(16) =55a(17) =197a(18) =24a(19) =5a(20) =5a(21) =26a(22) =127a(23) =70a(24) =11a(25) =1520a(26) =17a(27) =23a(28) =35a(29) =6
External references
- oeis: A077232