1,1
Cf. A143687, A143688
Sequence in context: A158760 A092019 A061164 this_sequence A069316 A022210 A057882
Adjacent sequences: A143683 A143684 A143685 this_sequence A143687 A143688 A143689
nonn,bref
Yasutoshi Kohmoto zbi74583.boat(AT)orange.zero.jp, Nov 13 2008, Nov 21 2008
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