22060

Appears in sequences

• Number of switching networks under action of AG_n(Z_2) acting on 3 variables.at n=2A000821
• Zero followed by partial sums of A008865.at n=40A145067
• Numbers m such that m^2 + 3^k is prime for k = 1, 2, 3.at n=31A177173
• Number of nX3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,0,0,0 for x=0,1,2,3,4.at n=9A197470
• a(n) = n*(3*n^2 - 5*n + 3).at n=20A226450
• Number of n X 4 binary arrays with top left element equal to 1 and no two ones adjacent horizontally or nw-se.at n=5A228792
• T(n,k)=Number of nXk binary arrays with top left element equal to 1 and no two ones adjacent horizontally or nw-se.at n=41A228796
• Number of 6Xn binary arrays with top left element equal to 1 and no two ones adjacent horizontally or nw-se.at n=3A228801
• Number of numbers k in interval [(p_n)^2+1, (p_n)^4] for which lpf(k-3)>lpf(k-1)>=p_n, where p_n=prime(n) and lpf = A020639.at n=9A243803
• The 60-degree spoke (or ray) of a hexagonal spiral of Ulam.at n=43A244802
• a(n) = Sum_{k=0..3} binomial(6,k)*binomial(n,k).at n=19A247608
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 57", based on the 5-celled von Neumann neighborhood.at n=31A270077
• Numbers n such that sigma(n) is a Fibonacci number.at n=13A272412
• Number of (binary) max-heaps on n elements from the set {0,1} containing exactly five 0's.at n=36A326506