Write 0,1,2,... in a clockwise spiral on a square lattice, writing each digit at a separate lattice point, starting with 0 at the origin and 1 at x=0, y=-1; sequence gives the numbers on the positive y-axis.

A033988

Write 0,1,2,... in a clockwise spiral on a square lattice, writing each digit at a separate lattice point, starting with 0 at the origin and 1 at x=0, y=-1; sequence gives the numbers on the positive y-axis.

Terms

    a(0) =0a(1) =5a(2) =1a(3) =4a(4) =3a(5) =7a(6) =8a(7) =0a(8) =4a(9) =7a(10) =7a(11) =1a(12) =2a(13) =6a(14) =2a(15) =1a(16) =8a(17) =7a(18) =4a(19) =2a(20) =6a(21) =1a(22) =8a(23) =9a(24) =2a(25) =7a(26) =6a(27) =0a(28) =6a(29) =5

External references