Triangle of denominators in Leibniz's Harmonic Triangle a(n,k), n >= 1, 1 <= k <= n.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =6a(5) =3a(6) =4a(7) =12a(8) =12a(9) =4a(10) =5a(11) =20a(12) =30a(13) =20a(14) =5a(15) =6a(16) =30a(17) =60a(18) =60a(19) =30a(20) =6a(21) =7a(22) =42a(23) =105a(24) =140a(25) =105a(26) =42a(27) =7a(28) =8a(29) =56