Expansion of (1/4)(1-sqrt(1-12x)/sqrt(1-4x)).
A138240
Expansion of (1/4)(1-sqrt(1-12x)/sqrt(1-4x)).
Terms
- a(0) =0a(1) =1a(2) =6a(3) =40a(4) =296a(5) =2400a(6) =20928a(7) =192768a(8) =1848960a(9) =18277888a(10) =184890368a(11) =1904259072a(12) =19898765312a(13) =210424545280
External references
- oeis: A138240