3,2
H. L. Abbott and D. Hanson, A lattice path problem, Ars Combin., 6 (1978), 163-178.
Sequence in context: A109000 A129962 A026361 this_sequence A092201 A026943 A047096
Adjacent sequences: A006186 A006187 A006188 this_sequence A006190 A006191 A006192
nonn,walk
njas
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