528384

Appears in sequences

• Expansion of a Schwarzian ({f_{27|3}, tau} / (4*Pi)^2) in powers of q^3.at n=21A062248
• Trace sequence of 3 X 3 symmetric Krawtchouk matrix.at n=12A098655
• Expansion of ((1+x)/(1-2x))^2.at n=14A113070
• Number of (n+1) X (3+1) 0..2 arrays with the upper median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=20A237632
• Numbers of the form m = 2^i + 2^j, where i > j >= 0, such that m - 1 is prime.at n=53A239708
• Number of set partitions of [n] such that the difference between each element and its index (in the partition) is a multiple of eight.at n=20A274865
• Numbers n for which A019565(n) <= A087207(n) < n.at n=37A286612
• Nonprime Heinz numbers of integer partitions whose product is equal to their sum.at n=25A301988
• Irregular triangle read by rows: T(n,k) is the number of colored digraphs on n nodes with color scheme given by the partitions of n in canonical ordering.at n=17A328773
• Triangle read by rows: T(n,k) is the number of colored digraphs on n nodes with exactly k colors assigned in a fix order according the node count (1 <= k <= n).at n=13A329541
• Regular subtriangle of A328773: T(n,k) is the number of the balanced colored digraphs on n nodes with k colors, 1 <= k <= n.at n=13A330693
• Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k grid up to horizontal and vertical reflections by a tile that is fixed under horizontal reflection only.at n=38A368218
• Numbers n such that each binary index k (from row n of A048793) has the same sum of binary indices A029931(k).at n=35A371732
• Number of runs of 1's of length <= 3 over all binary strings of length n.at n=17A386878