OFFSET
1,1
EXAMPLE
(4), (6), (8, 9, 10), (12), (14, 15, 16), (18), (20, 21, 22), (24), (25, 26, 27, 28, 30, 32, 33, 34, 35), (36, 38, 39, 40, 42, 44, 45, 46), (48, 49, 50, 51), ...
MATHEMATICA
NextComposite[n_] := Block[{k = n + 1}, While[PrimeQ[k], k++ ]; k]; a = {}; k = 1; Do[s = 0; While[k = NextComposite[k]; s = s + k; !IntegerQ[s/n], ]; a = Append[a, s], {n, 1, 45}]; a
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Aug 27 2002
EXTENSIONS
Edited, corrected and extended by Robert G. Wilson v, Aug 29 2002
STATUS
approved