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A156246
a(n)=sum(k=1,n,A000002(2*k-1))
0
1, 3, 4, 5, 7, 9, 10, 12, 13, 15, 17, 18, 19, 21, 22, 23, 25, 27, 28, 30, 31, 32, 34, 36, 37, 38, 40, 41, 43, 44, 45, 47, 49, 50, 52, 53, 54, 56, 58, 59, 61, 63, 64, 66, 68, 69, 71, 72, 73, 75, 76, 77, 79, 81, 82, 84, 85, 86, 88, 90, 91, 93, 94, 96, 98, 99, 100, 102, 103, 105
OFFSET
1,2
CROSSREFS
Sequence in context: A184419 A285970 A189665 * A136014 A112930 A224985
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Feb 07 2009
STATUS
approved