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A171620
a(n) = A120627(n) + A120627(n+1).
0
2, 8, 12, 12, 30, 30, 18, 30, 30, 18, 36, 36, 24, 24, 24, 30, 18, 12, 24, 72, 78, 48, 36, 18, 12, 30, 54, 72, 60, 30, 30, 48, 42, 36, 30, 42, 54, 24, 60, 138, 114, 66, 54, 48, 42, 42, 84, 60, 48, 60, 30, 48, 42, 12, 54, 60, 18, 36, 66, 60, 78, 84, 66, 54, 54, 54, 48, 36, 30, 72
OFFSET
1,1
CROSSREFS
Cf. A120627.
Sequence in context: A178060 A007543 A352549 * A043377 A107629 A080058
KEYWORD
nonn
AUTHOR
Giovanni Teofilatto, Dec 13 2009
EXTENSIONS
Missing values inserted by R. J. Mathar, Jun 28 2010
STATUS
approved