18065

Appears in sequences

• Multiplicity of highest weight (or singular) vectors associated with character chi_9 of Monster module.at n=43A034397
• Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only either four adjacent vertically or four adjacent horizontally.at n=9A145790
• Numbers k such that k^2 + 1 is divisible by precisely five distinct primes where the sum of the largest and the smallest is equal to the sum of the other three.at n=5A192771
• Numbers k such that the sum of the largest and the smallest prime divisor of k^2 + 1 equals the sum of the other distinct prime divisors.at n=9A199924
• Number of (w,x,y,z) with all terms in {1,...,n} and w+x+y=|x-y|+|y-z|.at n=41A212678
• Numbers which do not reach zero under either of the iterations: x -> floor(sqrt(x)) * (x - floor(sqrt(x))^2) or y -> ceiling(sqrt(y)) * (ceiling(sqrt(y))^2 - y).at n=20A219963
• Number of 4 X n 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-1) or (-2,0) and new values introduced in order 0..2.at n=8A274896
• Number of integer partitions of n with reverse-alternating sum < 0.at n=40A344608
• Number of integer partitions of 2n with reverse-alternating sum < 0.at n=20A344743