OFFSET
0,2
EXAMPLE
First few rows of the triangle:
1;
2, 1;
1, 2, 1;
2, 4, 2, 1;
1, 2, 7, 2, 1;
2, 7, 2, 10, 2, 1;
1, 2, 16, 2, 13, 2, 1;
...
MAPLE
A131325 := proc(n, k)
abs(3*abs(A049310(n, k))-2) ;
end proc:
seq(seq(A131325(n, k), k=0..n), n=0..12) ; # R. J. Mathar, Aug 13 2012
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Jun 28 2007
EXTENSIONS
Definition corrected by David Scambler, Aug 12 2012
STATUS
approved