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A098982 Total number of self-intersections of all walks on the triangular lattice starting at the origin. 1
0, 0, 6, 84, 846, 7344, 58704 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..6.

CROSSREFS

Cf. A098981.

Sequence in context: A211171 A054605 A119576 * A229455 A212701 A248338

Adjacent sequences:  A098979 A098980 A098981 * A098983 A098984 A098985

KEYWORD

nonn

AUTHOR

Pietro Monari (Pietro.Monari(AT)tetrapak.com), Oct 24 2004

STATUS

approved

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Last modified October 17 11:59 EDT 2019. Contains 328110 sequences. (Running on oeis4.)