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A004074 2*A004001(n) - n. +0
1
1, 0, 1, 0, 1, 2, 1, 0, 1, 2, 3, 2, 3, 2, 1, 0, 1, 2, 3, 4, 3, 4, 5, 4, 5, 4, 3, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 4, 5, 6, 7, 6, 7, 8, 7, 8, 7, 6, 7, 8, 7, 8, 7, 6, 7, 6, 5, 4, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 5, 6, 7, 8, 9, 8, 9, 10, 11, 10, 11, 12, 11, 12, 11, 10, 11, 12, 13, 12, 13, 14, 13, 14, 13, 12 (list; graph; listen)
OFFSET

1,6

REFERENCES

T. Kubo et al., On Conway's recursive sequence, Discrete Math. 152 1996 225-252.

FORMULA

a(2^n)=0; for n>=1 sum(i=2^(n-1), 2^n, a(i)) = A082590(n-2) - Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 04 2004

CROSSREFS

Cf. A004001.

Sequence in context: A053615 A002819 A037834 this_sequence A053646 A080776 A065358

Adjacent sequences: A004071 A004072 A004073 this_sequence A004075 A004076 A004077

KEYWORD

nonn

AUTHOR

njas

EXTENSIONS

More terms from Benoit Cloitre, Jun 04 2004

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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