A221565 - OEIS

A221565

Number of toothpicks or D-toothpicks added at n-th stage to the structure of A220512.

0, 4, 8, 16, 16, 16, 28, 48, 32, 16, 32, 64, 64, 80, 84, 112, 64, 16, 32, 64, 96, 112, 144, 176, 136, 112, 96, 176, 176, 208, 196, 240, 128, 16, 32, 64, 96, 112, 152

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

COMMENTS

The first differences of A220512.

First differs from A194433 at a(14).

LINKS

Table of n, a(n) for n=0..38.

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

Index entries for sequences related to toothpick sequences

EXAMPLE

When written as a irregular triangle begins:

16,16;

16,28,48,32;

16,32,64,64,80,84,112,64;

16,32,64,96,112,144,176,136,112,96,176,176,208,196,240,128;

16,32,64,96,112,152...

CROSSREFS

Row lengths give 1 together with A011782. Right border gives 0 together with four times A000079.

Cf. A139251, A194271, A194701, A194443, A220501, A220512, A220521, A220523, A220525, A220527, A221528.

Sequence in context: A099212 A045534 A194433 * A194435 A221528 A312759

Adjacent sequences: A221562 A221563 A221564 * A221566 A221567 A221568

KEYWORD

nonn,tabf,more

AUTHOR

Omar E. Pol, May 13 2013

STATUS

approved