Position reached by frog in A038027 or 0 if none. A038026(A038027(n)).

Terms

a(0) =19a(1) =28615021a(2) =1013a(3) =19a(4) =43a(5) =103a(6) =3697a(7) =631a(8) =181a(9) =4793a(10) =3947a(11) =43a(12) =137a(13) =149a(14) =103a(15) =65539a(16) =83a(17) =222841a(18) =91316521a(19) =439a(20) =463a(21) =433a(22) =71a(23) =281551a(24) =233a(25) =1201a(26) =7537