A213533 Number of k < 10^n such that A047988(k) = 4.

0, 0, 0, 0, 0, 0, 3, 19, 183, 1601, 14598, 130117

Offset

1,7

References

Thomas Kantke, Mathematische Unterhaltungen, in: Spektrum der Wissenschaft 4/1993, p. 11-13.

Thomas Kantke, Das Spiel Minimum, in: Spektrum der Wissenschaft Spezial Physik - Mathematik - Technik 2/2012, pp. 57-66.

Links

Table of n, a(n) for n=1..12.

Crossrefs

Cf. A047987, A047988, A212524, A213530, A213531, A213532.

Sequence in context: A371320 A121083 A343685 * A203133 A006531 A326550

Adjacent sequences: A213530 A213531 A213532 * A213534 A213535 A213536

Keyword

nonn

Author

Martin Renner, Jun 13 2012

Status

approved