OFFSET
0,2
COMMENTS
This could also be regarded as an irregular triangle read by rows.
EXAMPLE
The successive stages in the construction are:
0,
2,
4,5,6,
8,9,10,
12,13,14,15,16,17,18,
20,21,22,23,24,25,26,
28, ...
The row lengths are 1,1,3,3,7,7,15,15,31,31,63,... (see A052551).
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
N. J. A. Sloane, Jul 25 2022
STATUS
approved