1,1
Cf. A020491, A020488, A062516, A063469, A063470, A112955.
Sequence in context: A111204 A000510 A167628 this_sequence A031952 A043617 A043696
Adjacent sequences: A112951 A112952 A112953 this_sequence A112955 A112956 A112957
nonn,more
Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 07 2005
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