OFFSET
0,2
LINKS
R. K. Guy, Catwalks, sandsteps and Pascal pyramids, J. Integer Sequences, Vol. 3 (2000), Article #00.1.6.
EXAMPLE
1; 2; 2,4; 10,8; 10,34,16; 70,98,32; 70,308,258,64; ...
CROSSREFS
KEYWORD
nonn,tabf,easy,nice
AUTHOR
N. J. A. Sloane, Jan 26 2000
STATUS
approved