OFFSET
0,3
REFERENCES
S. Wolfram, A New Kind of Science, Wolfram Media, 2002; Chapter 3.
FORMULA
a(2n) = a(n) + 2n (conjectured). - Ralf Stephan, Mar 03 2004
CROSSREFS
KEYWORD
nonn
AUTHOR
Hans Havermann, May 26 2002
STATUS
approved