638779

Appears in sequences

• Semiprimes at which the Chebyshev bias of semiprimes == 3 (mod 4) and == 1 (mod 4) becomes positive.at n=21A196937
• Number of n X n 0..3 arrays with no element equal to two plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4.at n=3A238990
• Number of nX4 0..3 arrays with no element equal to two plus the sum of elements to its left or two plus the sum of the sum of elements above it, modulo 4.at n=3A238993
• T(n,k)=Number of nXk 0..3 arrays with no element equal to two plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4.at n=24A238997
• Number of nX4 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s.at n=5A295249
• Number of n X 6 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1's.at n=3A295251
• T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s.at n=39A295253
• T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s.at n=41A295253