Minimal (positive) solution a(n) of Pell equation a(n)^2 - D(n)*b(n)^2 = +4 with D(n)= A077425(n). The companion sequence is b(n)=A078355(n).
A077428
Minimal (positive) solution a(n) of Pell equation a(n)^2 - D(n)*b(n)^2 = +4 with D(n)= A077425(n). The companion sequence is b(n)=A078355(n).
Terms
- a(0) =3a(1) =11a(2) =66a(3) =5a(4) =27a(5) =46a(6) =146a(7) =4098a(8) =7a(9) =51a(10) =302a(11) =1523a(12) =258a(13) =25a(14) =4562498a(15) =9a(16) =83a(17) =1000002a(18) =29a(19) =125619266a(20) =402a(21) =82a(22) =68123a(23) =2408706a(24) =11a(25) =123a(26) =33710a(27) =173a(28) =12166146a(29) =190
External references
- oeis: A077428