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a(n) is the position of the second appearance of n in A117384, where A117384(m) = A117384(k) and k = 4*A117384(m) - m. The Connell sequence (A001614) is generated as: 1 odd, 2 even, 3 odd, ...
A171152 gives partial sums. [From Gerald Hillier, Dec 07 2009]
Table of n, a(n) for n=1..64.
A001614(n) = A118012( a(n) ).
a(n)=2n+[(1+sqrt(8n-7))/2].- Juri-Stepan Gerasimov Aug 25 2009
Cf. A001614, A117384, A118012.
Sequence in context: A013642 A140482 A212451 * A189679 A190229 A190085
Adjacent sequences: A118008 A118009 A118010 * A118012 A118013 A118014
Paul D. Hanna, Apr 10 2006