A233782 a(n) = A233781(n+1)/2.

1, 1, 2, 1, 2, 3, 4, 1, 2, 3, 5, 5, 4, 7, 8, 1, 2, 3, 5, 5, 5, 9, 12, 9, 4, 7, 11, 13, 8, 15, 16, 1, 2, 3, 5, 5, 5, 9, 12, 9, 5, 9, 15, 19, 13, 21, 26, 17, 4, 7, 11, 13, 11, 21, 28, 25, 8, 15, 23, 29, 16, 31, 32, 1, 2, 3, 5, 5, 5, 9, 12, 9, 5, 9, 15, 19

Offset

1,3

Comments

First 22 terms coincide with a(2)-a(23) of A169778.

Links

Table of n, a(n) for n=1..76.

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 the row lengths is A000079 the sequence begins:
1;
1,2;
1,2,3,4;
1,2,3,5,5,4,7,8;
1,2,3,5,5,5,9,12,9,4,7,11,13,8,15,16;
1,2,3,5,5,5,9,12,9,5,9,15,19,13,21,26,17,4,7,11,13,11,21,28,25,8,15,23,29,16,31,32;

Crossrefs

Right border gives A000079.

Cf. A139251, A169778, A220501, A220521, A231351, A233781, A233780.

Sequence in context: A358066 A358085 A357443 * A233972 A169778 A309776

Adjacent sequences: A233779 A233780 A233781 * A233783 A233784 A233785

Keyword

nonn,tabf

Author

Omar E. Pol, Dec 17 2013

Status

approved