a(n) = T(2n,n-1), where T is the array defined in A024996.
A026076
a(n) = T(2n,n-1), where T is the array defined in A024996.
Terms
- a(0) =1a(1) =2a(2) =12a(3) =62a(4) =339a(5) =1882a(6) =10594a(7) =60216a(8) =344846a(9) =1986620a(10) =11499940a(11) =66835540a(12) =389741279a(13) =2279233530a(14) =13362109050a(15) =78505098150a(16) =462109616730
External references
- oeis: A026076