Triangle defined in A064641 read by rows.

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =5a(5) =7a(6) =1a(7) =8a(8) =22a(9) =29a(10) =1a(11) =11a(12) =46a(13) =104a(14) =133a(15) =1a(16) =14a(17) =79a(18) =251a(19) =517a(20) =650a(21) =1a(22) =17a(23) =121a(24) =497a(25) =1369a(26) =2669a(27) =3319a(28) =1a(29) =20