0,2

Essentially the first differences of A220514.

First differs from A194435 at a(13).

Table of n, a(n) for n=0..55.

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

Index entries for sequences related to toothpick sequences

a(n) = 4*A220525(n).

When written as an irregular triangle begins:

0;

4;

8;

16,16;

16,32,44,32;

16,32,64,96,64,80,100,64;

16,32,64,96,128,144,168,176,80,96,176,256,160,176,212,128;

16,32,64,96,128,144,176,208,168,192,256,400,320,336,364,336,112,96,192,288,368,416,496,528,216,224,400,576,352,368, 436,256;

Row lengths give 1 together with A011782.

Cf. A139251, A194435, A194701, A220501, A220521, A220523, A220525.

Sequence in context: A194433 A221565 A194435 * A312759 A312760 A312761

Adjacent sequences: A221525 A221526 A221527 * A221529 A221530 A221531

nonn,tabf

Omar E. Pol, Mar 23 2013

approved