G.f. = (1+10*x-12*x^2-50*x^3+10*x^4+10*x^5-12*x^6)/(1-8*x-66*x^2+280*x^3+178*x^4-532*x^5-84*x^6+108*x^7).
A177358
G.f. = (1+10*x-12*x^2-50*x^3+10*x^4+10*x^5-12*x^6)/(1-8*x-66*x^2+280*x^3+178*x^4-532*x^5-84*x^6+108*x^7).
Terms
- a(0) =1a(1) =18a(2) =198a(3) =2442a(4) =27396a(5) =322238a(6) =3676684a(7) =42682364a(8) =490330760a(9) =5667610636a(10) =65270671720a(11) =753317707256
External references
- oeis: A177358