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A167903
A075380(n) + A075380(n+1).
2
4, 8, 9, 12, 18, 12, 8, 18, 25, 20, 16, 20, 25, 32, 40, 45, 40, 32, 36, 40, 44, 45, 36, 40, 50, 54, 60, 63, 60, 56, 60, 63, 64, 72, 75, 72, 75, 76, 75, 80, 84, 88, 92, 96, 99, 92, 88, 90, 92, 99, 104, 108, 112, 116, 117, 112, 116, 125, 124, 117, 108, 112, 124, 132, 135, 132
OFFSET
1,1
COMMENTS
A008966(a(n)) = 0 by definition of A075380.
CROSSREFS
Cf. A167907.
Sequence in context: A353834 A319302 A119025 * A074661 A370076 A252849
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Nov 15 2009
STATUS
approved