Number of different compact source directed animals with 1 point on the bottom line.

Terms

a(0) =1a(1) =2a(2) =5a(3) =14a(4) =40a(5) =116a(6) =339a(7) =996a(8) =2937a(9) =8684a(10) =25729a(11) =76352a(12) =226868a(13) =674806a(14) =2008907a(15) =5984886a(16) =17841024a(17) =53212500a(18) =158784033a(19) =473995320a(20) =1415449578a(21) =4228149450a(22) =12633596331a(23) =37758241434a(24) =112873961079a(25) =337492122822