Square spiral of sums of selected preceding terms, starting at 0 followed by 1 (a spiral Fibonacci-like sequence).

A094769

Square spiral of sums of selected preceding terms, starting at 0 followed by 1 (a spiral Fibonacci-like sequence).

Terms

    a(0) =0a(1) =1a(2) =1a(3) =2a(4) =4a(5) =6a(6) =12a(7) =18a(8) =37a(9) =56a(10) =94a(11) =189a(12) =285a(13) =475a(14) =952a(15) =1434a(16) =2392a(17) =3830a(18) =7666a(19) =11518a(20) =19202a(21) =30732a(22) =61482a(23) =92281a(24) =153874a(25) =246248a(26) =400178a(27) =800450a(28) =1200967a(29) =2001985

External references