Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 81.
A031669
Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 81.
Terms
- a(0) =41641a(1) =81274a(2) =133306a(3) =134770a(4) =199037a(5) =202621a(6) =278953a(7) =281069a(8) =283193a(9) =373546a(10) =479153a(11) =593261a(12) =733177a(13) =740041a(14) =869153a(15) =871018a(16) =878498a(17) =884129a(18) =1026794a(19) =1028821a(20) =1032881a(21) =1036949a(22) =1038986a(23) =1043066a(24) =1049201a(25) =1215133a(26) =1388525a(27) =1393241a(28) =1397965
External references
- oeis: A031669