0,2
Cf. A042528.
Sequence in context: A012293 A012594 A009464 this_sequence A090566 A041064 A005938
Adjacent sequences: A042526 A042527 A042528 this_sequence A042530 A042531 A042532
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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