OFFSET
0,2
COMMENTS
See A054238 for further information.
EXAMPLE
The top left corner of the array is:
0 1 4 5 16 17 20 21
2 3 6 7 18 19 22 23
8 9 12 13 24 25 28 29
10 11 14 15 26 27 30 31
32 33 36 37 48 49 52 53
34 35 38 39 50 51 54 55
40 41 44 45 56 57 60 61
42 43 46 47 58 59 62 63
CROSSREFS
KEYWORD
AUTHOR
Jasper Brown, Jul 19 2021
STATUS
approved