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A194695
Number of toothpicks or D-toothpicks added at n-th stage to the D-toothpick "corner" structure of A194694.
5
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.
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
KEYWORD
nonn,more
AUTHOR
Omar E. Pol, Sep 03 2011
STATUS
approved