Number of admissible sequences of order j; related to 7x+1 problem.
A174796
Number of admissible sequences of order j; related to 7x+1 problem.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =30a(4) =143a(5) =728a(6) =3148a(7) =15986a(8) =86009a(9) =478907a(10) =2731365a(11) =13131703a(12) =72135374a(13) =412835191a(14) =2416852480a(15) =14369476066a(16) =72067537808a(17) =409636973141
External references
- oeis: A174796