a(n) is smallest natural number a satisfying Pell equation b^2- d(n)*a^2= +1 or = -1, with d(n)=A000037(n) (nonsquare). Corresponding smallest b(n)=A077232(n).
A077233
a(n) is smallest natural number a satisfying Pell equation b^2- d(n)*a^2= +1 or = -1, with d(n)=A000037(n) (nonsquare). Corresponding smallest b(n)=A077232(n).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =1a(6) =1a(7) =3a(8) =2a(9) =5a(10) =4a(11) =1a(12) =1a(13) =4a(14) =39a(15) =2a(16) =12a(17) =42a(18) =5a(19) =1a(20) =1a(21) =5a(22) =24a(23) =13a(24) =2a(25) =273a(26) =3a(27) =4a(28) =6a(29) =1
External references
- oeis: A077233