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

1,1

Comments

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

Links

Table of n, a(n) for n=1..19.

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

Index entries for sequences related to toothpick sequences

Formula

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

Example

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

Crossrefs

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

Sequence in context: A081488 A199117 A348781 * A194693 A308841 A176528

Adjacent sequences: A194692 A194693 A194694 * A194696 A194697 A194698

Keyword

nonn,more

Author

Omar E. Pol, Sep 03 2011

Status

approved