For n > 1, a(n) doubles under the transform T, where Ta is the matrix product of partition triangle A008284 with a, with a(1) = 1.

A039809

For n > 1, a(n) doubles under the transform T, where Ta is the matrix product of partition triangle A008284 with a, with a(1) = 1.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =12a(5) =32a(6) =83a(7) =223a(8) =594a(9) =1600a(10) =4297a(11) =11589a(12) =31216a(13) =84212a(14) =227091a(15) =612712a(16) =1652913a(17) =4459962a(18) =12033405a(19) =32469682a(20) =87611105a(21) =236402465a(22) =637884103a(23) =1721218224a(24) =4644392797a(25) =12532091909a(26) =33815653370a(27) =91245738923

External references