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A220527 Number of toothpicks or D-toothpicks added at n-th stage in the toothpick structure of A220526. 4
0, 1, 2, 4, 4, 4, 4, 7, 8, 4, 4, 8, 12, 14, 12, 15, 16, 4, 4, 8, 12, 16, 10, 24, 26 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Essentially the first differences of A220526.

LINKS

Table of n, a(n) for n=0..24.

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 begins:

0;

1;

2;

4,4;

4,4,7,8;

4,4,8,12,14,12,15,16;

4,4,8,12,16,10,24,26,...

CROSSREFS

Cf. A139250, A139251, A194271, A194441, A194443, A220501, A220521, A220523, A220526.

Sequence in context: A220497 A194443 A220523 * A183226 A235863 A220495

Adjacent sequences:  A220524 A220525 A220526 * A220528 A220529 A220530

KEYWORD

nonn,tabf,more

AUTHOR

Omar E. Pol, Jan 02 2013

STATUS

approved

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Last modified January 19 12:36 EST 2020. Contains 331049 sequences. (Running on oeis4.)