OFFSET
1,1
FORMULA
EXAMPLE
a(1) = 4 - 2 = 2.
a(2) = 6 + 8 - 2 - 3 = 9.
a(3) = 9 + 10 + 12 - 2 - 3 - 5 = 21.
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy and Benoit Cloitre, Jun 23 2002
EXTENSIONS
a(7) and a(8) corrected and more terms from Sean A. Irvine, Jul 26 2019
STATUS
approved