A302186 Number of 3D walks of type ace.

1, 3, 11, 44, 188, 842, 3911, 18692, 91412, 455540, 2306028, 11829424

Offset

0,2

Comments

See Dershowitz (2017) for precise definition.

Links

Table of n, a(n) for n=0..11.

Nachum Dershowitz, Touchard's Drunkard, Journal of Integer Sequences, Vol. 20 (2017), #17.1.5.

Crossrefs

Cf. A000108, A000984, A002212, A002896, A005572, A026375, A064037, A081671, A138547, A145847, A145867, A150500, A202814.

Sequence in context: A319156 A026887 A151106 * A151107 A063018 A293468

Adjacent sequences: A302183 A302184 A302185 * A302187 A302188 A302189

Keyword

nonn,walk,more

Author

N. J. A. Sloane, Apr 09 2018

Status

approved