34568

Appears in sequences

• Number of ways to place 4 nonattacking queens on an n X n board.at n=8A061994
• Expansion of (f(q) * f(q^3) / (f(-q) * f(-q^3)))^2 in powers of q where f() is a Ramanujan theta function.at n=17A123861
• Number of ways to place n nonattacking composite pieces queen + rider[2,4] on an n X n chessboard.at n=15A189877
• Even composites m such that A086902(m)==7 (mod m).at n=8A338310
• Number T(n,k) of ways to place k nonattacking queens on an n X n board; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=40A348129
• Number of ways to place n nonattacking queens on a 2n X 2n board.at n=4A348130
• Number of partitions of n that contain more prime parts than nonprime parts.at n=46A355225
• a(n) = Sum_{k=0..floor(n/3)} Stirling2(k,n - 3*k).at n=34A357940