Bisect A053445 then calculate the first differences of the resulting sequence.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =1a(6) =4a(7) =4a(8) =6a(9) =11a(10) =15a(11) =20a(12) =33a(13) =43a(14) =60a(15) =88a(16) =119a(17) =160a(18) =226a(19) =300a(20) =404a(21) =549a(22) =727a(23) =961a(24) =1283a(25) =1680a(26) =2201a(27) =2887a(28) =3750a(29) =4857