Triangle read by rows: T(n,k) is the number of end rhyme patterns of a poem of an even number of lines (2n) with 1<=k<=n evenly rhymed sounds.
A156289
Triangle read by rows: T(n,k) is the number of end rhyme patterns of a poem of an even number of lines (2n) with 1<=k<=n evenly rhymed sounds.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =15a(5) =15a(6) =1a(7) =63a(8) =210a(9) =105a(10) =1a(11) =255a(12) =2205a(13) =3150a(14) =945a(15) =1a(16) =1023a(17) =21120a(18) =65835a(19) =51975a(20) =10395a(21) =1a(22) =4095a(23) =195195a(24) =1201200a(25) =1891890a(26) =945945a(27) =135135a(28) =1a(29) =16383
External references
- oeis: A156289