OFFSET
0,3
COMMENTS
LINKS
FORMULA
a(n) = A222181(n+1)/5, n >= 1.
EXAMPLE
Apparently this is an irregular triangle:
0;
1;
2, 2;
2, 4, 6, 4;
2, 4, 8, 8, 6, 10, 14, 8;
2, 4, 8, 12, 16,...
CROSSREFS
KEYWORD
nonn,tabf,more
AUTHOR
Omar E. Pol, Mar 21 2013
STATUS
approved