99220

Appears in sequences

• Numbers k such that if k = a*b, then a+b = reversal(k) for some integers a,b > 1.at n=20A161791
• Number of 0..2 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=14A171308
• Number of 0..n-1 integer arrays v[1..15] of length 15 with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..14.at n=2A171366