Sierpinski stellated octahedron numbers: a(n) = 2*(-3*2^(n+1) + 2^(2*n+3) + 5).

A281699

Sierpinski stellated octahedron numbers: a(n) = 2*(-3*2^(n+1) + 2^(2*n+3) + 5).

Terms

    a(0) =14a(1) =50a(2) =218a(3) =938a(4) =3914a(5) =16010a(6) =64778a(7) =260618a(8) =1045514a(9) =4188170a(10) =16764938a(11) =67084298a(12) =268386314a(13) =1073643530a(14) =4294770698a(15) =17179475978a(16) =68718690314a(17) =274876334090

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