Dispersion of A016861, (5k+1), by antidiagonals.

Terms

a(0) =1a(1) =6a(2) =2a(3) =31a(4) =11a(5) =3a(6) =156a(7) =56a(8) =16a(9) =4a(10) =781a(11) =281a(12) =81a(13) =21a(14) =5a(15) =3906a(16) =1406a(17) =406a(18) =106a(19) =26a(20) =7a(21) =19531a(22) =7031a(23) =2031a(24) =531a(25) =131a(26) =36a(27) =8a(28) =97656a(29) =35156