1,4
Sequence in context: A127598 A011037 A111987 this_sequence A138279 A131800 A086038
Adjacent sequences: A004647 A004648 A004649 this_sequence A004651 A004652 A004653
nonn
N. J. A. Sloane (njas(AT)research.att.com), wild(AT)edumath.u-strasbg.fr (Daniel Wild)
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