Largest gcd of two distinct numbers on row n of Pascal's triangle.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =5a(5) =7a(6) =28a(7) =42a(8) =42a(9) =165a(10) =132a(11) =429a(12) =1001a(13) =1001a(14) =1430a(15) =6188a(16) =4862a(17) =25194a(18) =41990a(19) =58786a(20) =58786a(21) =245157a(22) =653752a(23) =742900a(24) =1931540a(25) =4345965a(26) =2674440a(27) =17298645a(28) =9694845a(29) =29464725