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 negative x-axis.
A033989
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 negative x-axis.
Terms
- a(0) =0a(1) =3a(2) =1a(3) =1a(4) =3a(5) =2a(6) =7a(7) =9a(8) =1a(9) =1a(10) =6a(11) =9a(12) =4a(13) =7a(14) =9a(15) =1a(16) =2a(17) =1a(18) =2a(19) =1a(20) =6a(21) =7a(22) =4a(23) =3a(24) =6a(25) =1a(26) =2a(27) =9a(28) =5a(29) =1
External references
- oeis: A033989