Rectangular array: (row n) = b**c, where b(h) = h, c(h) = binomial(2*n-4+2*h,n-2+h), n>=1, h>=1, and ** = convolution.

A213853

Rectangular array: (row n) = b**c, where b(h) = h, c(h) = binomial(2*n-4+2*h,n-2+h), n>=1, h>=1, and ** = convolution.

Terms

    a(0) =1a(1) =4a(2) =2a(3) =13a(4) =10a(5) =6a(6) =42a(7) =38a(8) =32a(9) =20a(10) =141a(11) =136a(12) =128a(13) =110a(14) =70a(15) =492a(16) =486a(17) =476a(18) =452a(19) =392a(20) =252a(21) =1767a(22) =1760a(23) =1748a(24) =1718a(25) =1638a(26) =1428a(27) =924a(28) =6474a(29) =6466

External references