243432

Appears in sequences

• Numbers k such that sigma(k) - usigma(k) is a square and sets a new record for such squares.at n=38A063840
• Elements of A103741 that do not terminate in a zero digit.at n=14A103764
• a(n) = 24*p(n) = 24*A000041(n).at n=33A183008
• Number of (n+1) X 3 0..2 arrays with no 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors or the same number of counterclockwise edge increases as its vertical neighbors.at n=4A206670
• Number of (n+1) X 6 0..2 arrays with no 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors or the same number of counterclockwise edge increases as its vertical neighbors.at n=1A206673
• T(n,k) = number of (n+1) X (k+1) 0..2 arrays with no 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors or the same number of counterclockwise edge increases as its vertical neighbors.at n=16A206676
• T(n,k) = number of (n+1) X (k+1) 0..2 arrays with no 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors or the same number of counterclockwise edge increases as its vertical neighbors.at n=19A206676
• Let p = n-th prime == 3 mod 8; a(n) = (sum of quadratic residues mod p that are < p/2) + (sum of all quadratic residues mod p).at n=40A282727