0,1
Table of n, a(n) for n=0..18.
Cf. A042537.
Sequence in context: A064763 A219594 A042534 * A042538 A220755 A101095
Adjacent sequences: A042533 A042534 A042535 * A042537 A042538 A042539
nonn,cofr,easy
N. J. A. Sloane.
approved