A007720 - OEIS

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A007720

Arises in attempts to apply Engel's `probabilistic abacus' to random walks on infinite square grid.

1, 2, 3, 1, 2, 3, 4, 2, 3, 3, 2, 3, 4, 4, 4, 3, 4, 5, 5, 3, 4, 5, 3, 4, 5, 5, 6, 4, 5, 6, 4, 5, 5, 6, 7, 5, 5, 6, 4, 5, 4, 5, 5, 5, 4, 4, 5, 6, 6, 5, 5, 5, 4, 5, 6, 6, 6, 4, 5, 4, 5, 5, 7, 7 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A096436 A053610 A104246 * A129968 A027615 A053737` `Adjacent sequences: A007717 A007718 A007719 * A007721 A007722 A007723`
	KEYWORD	`nonn,walk`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Jim Propp (propp(AT)math.wisc.edu)`

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Last modified February 14 23:16 EST 2012. Contains 205687 sequences.