

A188346


Number of hearts present in the nth generation of the Qtoothpick sequence A187210.


5



0, 0, 0, 0, 0, 2, 4, 4, 4, 8, 12, 12, 12, 16, 20, 20, 28, 44, 52, 52, 52, 56, 60, 60, 68, 84, 92, 92, 96, 108, 116, 124, 156, 196, 212, 212, 212, 216, 220, 220, 228, 244, 252, 252, 256, 268, 276, 284, 316, 356, 372, 372, 376, 388, 396
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OFFSET

0,6


COMMENTS

See A187210 for a description of the different shapes that appear in the Qtoothpick sequence.


LINKS



FORMULA

It appears that a(n) = A211008(n2,2), n >= 3. (Checked by hand up n = 130 in the toothpick structure of A139250).  Omar E. Pol, Sep 25 2012


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



