A262110 Number of (1+1)X(n+1) 0..2 arrays with each row nonprime and column prime, read as a base 3 number with top and left being the most significant digits.

7, 26, 130, 617, 2668, 11479, 47947, 201431, 829089, 3392254, 13837262

Offset

1,1

Comments

Row 1 of A262109.

Links

Table of n, a(n) for n=1..11.

Example

Some solutions for n=4
..1..1..1..1..2....1..0..1..1..0....0..1..0..2..1....0..0..1..0..0
..0..0..0..0..1....2..2..0..0..2....2..2..2..1..0....2..2..0..2..2

Crossrefs

Cf. A262109.

Sequence in context: A232605 A350473 A349309 * A319425 A026683 A197053

Adjacent sequences: A262107 A262108 A262109 * A262111 A262112 A262113

Keyword

nonn

Author

R. H. Hardin, Sep 11 2015

Status

approved