OFFSET
1,2
COMMENTS
Adjacent blocks have the same sense when one uses a gap in a shared side as a fall and the other uses it as an increase.
Table starts
...........0.............21..............563..............9403
..........21............290............13169............550268
.........563..........13169...........469254..........32555965
........9403.........550268.........32555965........3202350892
......135578.......19849923.......2610816897......470757143497
.....1814815......667017027.....211915469907....85938883577009
....23204876....21320890377...16635894447271.16327766532728500
...287769879...659741463420.1270931982853879
..3491293862.19939380387212
.41667398364
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..60
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 06 2011
STATUS
approved