20223

Appears in sequences

• Multiplicity of highest weight (or singular) vectors associated with character chi_76 of Monster module.at n=38A034464
• Values of A038005 ending in 3.at n=27A038013
• Non-balanced numbers in A015771.at n=32A078549
• Least k, 1 <= k <= 2^n, such that the continued fraction for 2^n/k contains the maximum number of elements.at n=14A089636
• Riordan array (1/(1-3x),x(1-x)/(1-3x)^2).at n=30A114195
• Triangle read by rows: row n is the first row of the matrix M[n]^(n-1), where M[n] is the n X n tridiagonal matrix with main diagonal (3,4,4,...) and super- and subdiagonals (1,1,1,...).at n=30A124574
• Integers n such that exactly 80 percent of the digits in base 2 are 1's.at n=43A163142
• Numbers k for which 5*k-4, 5*k-2, 5*k+2, and 5*k+4 are primes.at n=37A178082
• Smallest of three consecutive integers divisible respectively by three consecutive squares greater than 1.at n=5A178919
• Number of n X 2 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors.at n=7A183476
• Number of nX8 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors.at n=1A183482
• T(n,k)=Number of nXk 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors.at n=37A183483
• T(n,k)=Number of nXk 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors.at n=43A183483
• [s(k)-s(j)]/6, where the pairs (k,j) are given by A205857 and A205858, and s(k) denotes the (k+1)-st Fibonacci number.at n=45A205860
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 49", based on the 5-celled von Neumann neighborhood.at n=15A285559
• Solution of the complementary equation a(n) = 2*a(n-1) - a(n-2) + b(n-1) + n, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.at n=37A294872
• Prime time numbers on 6-digit clocks: numbers of the form HMMSS where H, MM, SS are primes, H < 24, MM and SS < 60.at n=8A295014
• Numbers k such that A307437(k) is divisible by 3.at n=35A342037
• Number of partitions of n into 7 or more distinct parts.at n=45A347574