OFFSET
1,2
COMMENTS
This is the lexicographically earliest sequence of distinct nonnegative terms with this property. Computed in memory of Michaƫl Falcoz, August 2, 1986 - August 20, 2020.
EXAMPLE
No integer in the spiral contains "1"; the integers forming any 2 X 2 square add up to a number without "1"; the integers forming any 3 X 3 square add up to a number without "1", etc.
The 5 X 5 square visible here (without the leg 34-35) is made of 25 terms summing up to 2968, a result that doesn't use the digit 1.
.
30--33--32-202-2000-34
| |
203 6---7--23---8 35
| | | .
29 20 0---2 9 .
| | | | .
28 5---4---3 22
| |
27--26--200-25--24
.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Eric Angelini and Jean-Marc Falcoz, Sep 04 2020
STATUS
approved