Construct a square spiral: a(n) is the sum of all adjacent terms a(k) in the spiral for k < n; a(1) = 0, a(2) = 1.
A358429
Construct a square spiral: a(n) is the sum of all adjacent terms a(k) in the spiral for k < n; a(1) = 0, a(2) = 1.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =2a(4) =2a(5) =4a(6) =4a(7) =9a(8) =10a(9) =11a(10) =23a(11) =25a(12) =26a(13) =54a(14) =59a(15) =63a(16) =65a(17) =134a(18) =144a(19) =152a(20) =156a(21) =321a(22) =344a(23) =374a(24) =395a(25) =406a(26) =835a(27) =894a(28) =968a(29) =1019
External references
- oeis: A358429