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

A094768

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

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =9a(6) =16a(7) =25a(8) =42a(9) =68a(10) =110a(11) =179a(12) =291a(13) =470a(14) =763a(15) =1236a(16) =2005a(17) =3241a(18) =5252a(19) =8502a(20) =13770a(21) =22272a(22) =36058a(23) =58355a(24) =94455a(25) =152878a(26) =247333a(27) =400279a(28) =647722a(29) =1048180

External references