Least k for which A140361(n) = k.

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =13a(5) =41a(6) =113a(7) =311a(8) =1821a(9) =10267a(10) =74587a(11) =1015453a(12) =12550793