27058

Appears in sequences

• a(n) = prime(n)*prime(n+1) - prime(n).at n=37A037166
• Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n then a(n) is the trace of M(n)^(-6).at n=30A114358
• Record values in A046641.at n=37A145771
• Number of 0..7 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=4A171313
• Number of 0..n-1 integer arrays v[1..5] of length 5 with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..4.at n=7A171356
• Numbers n such that the digits of sigma(n) are exactly the same (albeit in different order) as the digits of phi(n), in base 10.at n=28A175795
• a(n) = (7*n+2)*(7*n+5) = 49*n^2 + 49*n + 10.at n=23A177060
• Numbers that have 10 terms in their Zeckendorf representation.at n=28A179250
• Length of the n-th term in the modified Look and Say sequence A110393.at n=38A179999
• Number of nX4 0..1 arrays with every element unequal to 0, 1, 3 or 6 king-move adjacent elements, with upper left element zero.at n=14A304129