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A233972 a(n) = A233971(n+1)/2. 2
1, 1, 2, 1, 2, 3, 4, 1, 2, 3, 5, 5, 4, 7, 8, 1, 2, 3, 5, 5, 5, 9, 12, 11, 4, 7, 11, 13, 8, 15, 16, 1, 2, 3, 5, 5, 5, 9, 12, 11, 5, 9, 14, 19, 14, 23, 28, 27, 4, 7, 11, 13, 11, 21, 28, 31, 8, 15, 23, 29, 16, 31, 32, 1, 2, 3, 5, 5, 5, 9, 12, 11, 5, 9, 14 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..75.

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

Index entries for sequences related to toothpick sequences

EXAMPLE

Written as an irregular triangle in which row lengths is A000079 the sequence begins:

1,

1,2,

1,2,3,4,

1,2,3,5,5,4,7,8,

1,2,3,5,5,5,9,12,11,4,7,11,13,8,15,16,

1,2,3,5,5,5,9,12,11,5,9,14,19,14,23,28,27,4,7,11,13,11,21, 28,31,8,15,23,29,16,31,32;

CROSSREFS

Right border gives A000079.

Cf. A139251, A233782, A233970, A233971.

Sequence in context: A168265 A062050 A233782 * A169778 A255560 A046653

Adjacent sequences:  A233969 A233970 A233971 * A233973 A233974 A233975

KEYWORD

nonn,tabf

AUTHOR

Omar E. Pol, Dec 18 2013

STATUS

approved

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Last modified April 25 23:48 EDT 2019. Contains 322465 sequences. (Running on oeis4.)