a(n) = 5*2^(n+2) + 2^(2n+2) + 10*3^n + 5^n + 35.

A254367

a(n) = 5*2^(n+2) + 2^(2n+2) + 10*3^n + 5^n + 35.

Terms

    a(0) =70a(1) =126a(2) =294a(3) =846a(4) =2814a(5) =10326a(6) =40614a(7) =168126a(8) =723534a(9) =3208806a(10) =14570934a(11) =67417806a(12) =316645854a(13) =1505245686a(14) =7225414854a(15) =34956689886a(16) =170199537774a(17) =832952952966

External references