Array defined in A064643 read in direction in which it was created.

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =5a(5) =6a(6) =1a(7) =13a(8) =21a(9) =22a(10) =1a(11) =45a(12) =84a(13) =104a(14) =105a(15) =1a(16) =211a(17) =412a(18) =562a(19) =630a(20) =631a(21) =1a(22) =1263a(23) =2500a(24) =3558a(25) =4285a(26) =4602a(27) =4603a(28) =1a(29) =9207