First differences of A293230: how many more alive nodes there are in generation n+1 than in generation n in the binary tree of persistently squarefree numbers.
A293440
First differences of A293230: how many more alive nodes there are in generation n+1 than in generation n in the binary tree of persistently squarefree numbers.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =2a(4) =2a(5) =3a(6) =3a(7) =4a(8) =7a(9) =9a(10) =14a(11) =17a(12) =18a(13) =30a(14) =37a(15) =53a(16) =68a(17) =82a(18) =116a(19) =149a(20) =201a(21) =289a(22) =390a(23) =510a(24) =701a(25) =921a(26) =1241a(27) =1682a(28) =2277a(29) =2990
External references
- oeis: A293440