Population of "Triangle" cellular automaton at n-th generation.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =12a(5) =16a(6) =32a(7) =44a(8) =86a(9) =98a(10) =172a(11) =196a(12) =300a(13) =302a(14) =426a(15) =474a(16) =656a(17) =704a(18) =986a(19) =956a(20) =1180a(21) =1230a(22) =1562a(23) =1530a(24) =1918a(25) =2000a(26) =2622a(27) =2638a(28) =3294a(29) =3244