0,2
Essentially same as A026352.
Sequence in context: A139477 A122437 A090848 this_sequence A026352 A047399 A057349
Adjacent sequences: A004954 A004955 A004956 this_sequence A004958 A004959 A004960
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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