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A151570 a(0)=1, a(1)=1; a(2^i+j)=a(j)+a(j+1) for 0 <= j < 2^i. 16
1, 1, 2, 3, 2, 3, 5, 5, 2, 3, 5, 5, 5, 8, 10, 7, 2, 3, 5, 5, 5, 8, 10, 7, 5, 8, 10, 10, 13, 18, 17, 9, 2, 3, 5, 5, 5, 8, 10, 7, 5, 8, 10, 10, 13, 18, 17, 9, 5, 8, 10, 10, 13, 18, 17, 12, 13, 18, 20, 23, 31, 35, 26, 11, 2, 3, 5, 5, 5, 8, 10, 7, 5, 8, 10, 10, 13, 18, 17, 9, 5, 8, 10, 10, 13, 18, 17, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Equals A118977 + A151702.

LINKS

Table of n, a(n) for n=0..87.

David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata

N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

CROSSREFS

For the recurrence a(2^i+j) = C*a(j) + D*a(j+1), a(0) = A, a(1) = B for following values of (A B C D) see: (0 1 1 1) A118977, (1 0 1 1) A151702, (1 1 1 1) A151570, (1 2 1 1) A151571, (0 1 1 2) A151572, (1 0 1 2) A151703, (1 1 1 2) A151573, (1 2 1 2) A151574, (0 1 2 1) A160552, (1 0 2 1) A151704, (1 1 2 1) A151568, (1 2 2 1) A151569, (0 1 2 2) A151705, (1 0 2 2) A151706, (1 1 2 2) A151707, (1 2 2 2) A151708.

Sequence in context: A110976 A236483 A266714 * A059036 A184442 A163466

Adjacent sequences:  A151567 A151568 A151569 * A151571 A151572 A151573

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 25 2009

STATUS

approved

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Last modified December 9 10:32 EST 2016. Contains 278971 sequences.