-1423

Appears in sequences

• Shifts left when Moebius transformation applied twice.at n=49A007551
• Triangle read by rows: coefficients of characteristic polynomials of lower triangular matrix of Robbins triangle numbers.at n=18A102610
• a(n) = 36*n^2 - 810*n + 2753, producing the conjectured record number of 45 primes in a contiguous range of n for quadratic polynomials, i.e., abs(a(n)) is prime for 0 <= n < 44.at n=8A117081
• Prime-generating polynomial: a(n) = 4*n^2 + 12*n - 1583.at n=5A182409
• Values of the prime-generating polynomial 4*n^2 - 284*n + 3449.at n=29A210626
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 305", based on the 5-celled von Neumann neighborhood.at n=21A271163