Round(-1/n + 1/log((2n+1)/(2n-1))).

Terms

a(0) =10a(1) =92a(2) =319a(3) =761a(4) =1491a(5) =2581a(6) =4103a(7) =6130a(8) =8732a(9) =11982a(10) =15952a(11) =20714a(12) =26341a(13) =32903a(14) =40473a(15) =49123a(16) =58925a(17) =69952a(18) =82274a(19) =95964a(20) =111094a(21) =127736a(22) =145963a(23) =165845a(24) =187455a(25) =210865a(26) =236147a(27) =263374a(28) =292616a(29) =323946