A194695 Number of toothpicks or D-toothpicks added at n-th stage to the D-toothpick "corner" structure of A194694.

2, 2, 4, 6, 8, 8, 11, 16, 13, 10, 12, 20, 22, 26, 24, 36, 21, 10, 12

Offset: 1

Author

Omar E. Pol, Sep 03 2011

Keywords

• nonn
• more

Comments

Sequence related to the D-toothpick "narrow" triangle (See A194442 and A194443). First differences of A194694.

Examples

			Written as a triangle:
2,
2,
4,
6,8,
8,11,16,13,
10,12,20,22,26,24,36,21,
10,12
		

Links

• N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS
• Index entries for sequences related to toothpick sequences

Crossrefs

Cf. A152980, A194271, A194442, A194443, A194693, A194694, A194697

Formula

a(n) = A194697(n)/2.