Number of strings of length n over an 8-letter alphabet that begin with a nontrivial palindrome.
A249641
Number of strings of length n over an 8-letter alphabet that begin with a nontrivial palindrome.
Terms
- a(0) =0a(1) =0a(2) =8a(3) =120a(4) =1016a(5) =8520a(6) =68552a(7) =551496a(8) =4415048a(9) =35344632a(10) =282781304a(11) =2262444024a(12) =18099745784a(13) =144799511928
External references
- oeis: A249641