OFFSET
0,4
COMMENTS
The first differences (a(n+1) - a(n)) are b(n) = 1, 0, 1, 1, 1, 2, 1, 3, 1, 3, 1, 3, 1, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 6, 1, 7, 1, 7, ... .
b(2n+1) = 0, 1, 2, 3, 3, 3, 4, 5, 5, 5, 5, 5, 6, 7, 7, 7, 7, 7, 7, 7, 8, ... =
0, 1,
2, 3, 3, 3
4, 5, 5, 5, 5, 5,
6, 7, 7, 7, 7, 7, 7, 7,
...
= 2*n followed by 2*n+1 times 2*n+1 (by rows) = A282692(n)?
= A284359(n) - 1.
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul Curtz, Mar 26 2017
STATUS
approved