107653

Appears in sequences

• a(n) = n^2*(n-1)^3/4.at n=14A019584
• Numbers of the form (7^i)*(13^j).at n=18A108056
• Numbers that factorize into a prime number of factors all raised to different prime exponents and no number appears both as an exponent and as a prime factor.at n=26A114131
• Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-0111-0100 pattern in any orientation.at n=10A146468
• Number of (n+1)X2 0..6 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=2A203880
• Number of (n+1) X 4 0..6 arrays with every 2 X 2 subblock having equal diagonal elements or equal antidiagonal elements.at n=0A203882
• T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=3A203887
• T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=5A203887
• Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=4A299360
• Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=4A299363
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=40A299366
• Heinz numbers of integer partitions whose reciprocal sum is 1.at n=19A316855
• Heinz numbers of aperiodic integer partitions whose reciprocal sum is 1.at n=15A316889
• Powerful numbers k that are not prime powers such that there exist no numbers m such that rad(m) | k and Omega(m) > Omega(k), where rad = A007947 and Omega = A001222.at n=31A377591
• Integers k such that k = Sum k/(p_i + j), where p_i are the prime factors of k (with multiplicity). Case j = -4.at n=15A380925