Square spiral sequence: numbers are placed in a square spiral, a(1)=1, a(n) is found as the sum of the row (in the previous direction) a(n-1) is in.

A062410

Square spiral sequence: numbers are placed in a square spiral, a(1)=1, a(n) is found as the sum of the row (in the previous direction) a(n-1) is in.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =9a(6) =11a(7) =24a(8) =28a(9) =31a(10) =94a(11) =105a(12) =114a(13) =344a(14) =375a(15) =403a(16) =427a(17) =1663a(18) =1777a(19) =1882a(20) =1976a(21) =7725a(22) =8152a(23) =8555a(24) =8930a(25) =9274a(26) =44612a(27) =46588a(28) =48470a(29) =50247

External references