OFFSET
1,2
EXAMPLE
a(6) = 37 = 1*1 + 1*5 + 1*10 + 1*10 + 2*5, + 1*1, where 1, 1, 1, 1, 2, 1...are the first 6 terms of A007318 (the first 3 rows of Pascal's triangle as a continuous sequence).
CROSSREFS
KEYWORD
nonn
AUTHOR
Gary W. Adamson, May 02 2005
EXTENSIONS
More terms from Carl Najafi, Sep 08 2011
STATUS
approved