Third column (m=2) of triangle A060920 (bisection of Fibonacci triangle, even part).

A061178

Third column (m=2) of triangle A060920 (bisection of Fibonacci triangle, even part).

Terms

    a(0) =1a(1) =9a(2) =51a(3) =233a(4) =942a(5) =3522a(6) =12473a(7) =42447a(8) =140109a(9) =451441a(10) =1426380a(11) =4434420a(12) =13599505a(13) =41225349a(14) =123723351a(15) =368080793a(16) =1086665562a(17) =3186317718a(18) =9286256393a(19) =26916587307a(20) =77634928209a(21) =222920650081

External references