Numerators b(n) of Pythagorean approximations b(n)/a(n) to 1/3.

Terms

a(0) =0a(1) =5a(2) =7a(3) =12a(4) =155a(5) =301a(6) =444a(7) =5921a(8) =11395a(9) =16872a(10) =224807a(11) =432745a(12) =640680a(13) =8536781a(14) =16432879a(15) =24328980a(16) =324172835a(17) =624016693a(18) =923860548a(19) =12310030985a(20) =23696201419a(21) =35082371856a(22) =467457004559a(23) =899831637265