A220527 Number of toothpicks or D-toothpicks added at n-th stage in the toothpick structure of A220526.

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

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