Number of ways to transform a sequence of n ones and n twos to a single number by continually removing two numbers and replacing them with their sum modulo 3.
A276029
Number of ways to transform a sequence of n ones and n twos to a single number by continually removing two numbers and replacing them with their sum modulo 3.
Terms
- a(0) =1a(1) =4a(2) =27a(3) =228a(4) =2226a(5) =23778a(6) =270693a(7) =3229106a(8) =39922172a(9) =507680620a(10) =6604676830a(11) =87549425068
External references
- oeis: A276029