OFFSET
0,1
COMMENTS
(Antidiagonal writing) fractions are 3/4, 5/36,5/36, 7/144,7/144,7/144, . Numerator:A171676. Rydberg-Ritz.
FORMULA
n times A035287(n+2).
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
Paul Curtz, Nov 28 2010
STATUS
approved