50429

Appears in sequences

• Indices of primes at which the prime race 4k-1 vs. 4k+1 is tied.at n=21A038691
• a(n) = 30*n^2 - 1.at n=40A158560
• Number of (n+1) X 4 binary arrays with consecutive windows of two bits considered as a binary number nondecreasing in every row and column.at n=23A202330
• Main diagonal of Ludic array A255127 (and A255129): a(n) = A255127(n,n).at n=34A255410
• Quasi-Carmichael numbers to exactly three bases.at n=18A257753
• a(n) = (n^2 - n + 1)*(n^2 + n - 1).at n=14A257925