Number of sequences of n 2's and 3's with curling number 2, which have the form XY^2 with Y = 2, and which are not robust.
A217930
Number of sequences of n 2's and 3's with curling number 2, which have the form XY^2 with Y = 2, and which are not robust.
Terms
- a(0) =0a(1) =1a(2) =0a(3) =0a(4) =0a(5) =1a(6) =0a(7) =2a(8) =0a(9) =4a(10) =1a(11) =7a(12) =1a(13) =18a(14) =0a(15) =32a(16) =5a(17) =65a(18) =5a(19) =130a(20) =4a(21) =261a(22) =19a(23) =504a(24) =16a(25) =1043a(26) =20a(27) =2028a(28) =81a(29) =4043
External references
- oeis: A217930