A trisection of A001405 (central binomial coefficients): binomial(3n+2,floor((3n+2)/2))/2, n >= 0.

A187444

A trisection of A001405 (central binomial coefficients): binomial(3n+2,floor((3n+2)/2))/2, n >= 0.

Terms

    a(0) =1a(1) =5a(2) =35a(3) =231a(4) =1716a(5) =12155a(6) =92378a(7) =676039a(8) =5200300a(9) =38779380a(10) =300540195a(11) =2268783825a(12) =17672631900a(13) =134564468610

External references