0,1
Cf. A042241.
Sequence in context: A042238 A042234 A042232 * A042242 A042244 A042246
Adjacent sequences: A042237 A042238 A042239 * A042241 A042242 A042243
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).