OFFSET
1,1
EXAMPLE
a(5)=43 because 43 = 41 + 2 = 31 + 7 + 5 = 31 + 7 + 3 + 2 = 17 + 11 + 7 + 5 + 3.
CROSSREFS
KEYWORD
nonn
AUTHOR
Jon Perry, Jan 11 2004
EXTENSIONS
Extended through a(5) by Gershon Bialer (gersh(AT)bialer.com), Jan 11 2004
Extended through a(18) by Don Reble, Jan 12 2004
Terms a(19) onwards from Ray Chandler, May 01 2007
STATUS
approved