One-fourth of fourth column of Lucas bisection triangle (odd part).
A061173
One-fourth of fourth column of Lucas bisection triangle (odd part).
Terms
- a(0) =3a(1) =70a(2) =642a(3) =4055a(4) =20945a(5) =95372a(6) =398290a(7) =1561683a(8) =5836190a(9) =21001410a(10) =73300478a(11) =249476600a(12) =831342517a(13) =2720979140a(14) =8768966810a(15) =27881856697a(16) =87610794135a(17) =272424413508a(18) =839229287580
External references
- oeis: A061173