191050

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 97.at n=1A031685
• Number of 1..4 integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1.at n=8A171278
• Number of 1..n integer arrays v[1..9] of length 9 with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..8.at n=3A171346