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A103838
Complement of A001671.
0
2, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79
OFFSET
0,1
FORMULA
a(n) = n + [log(n + [log(n)])], apart from some initial exceptions. - David W. Wilson, Mar 29 2005
CROSSREFS
Sequence in context: A326875 A326876 A026486 * A139283 A188013 A183299
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Mar 30 2005
STATUS
approved