38140

Appears in sequences

• Numbers k such that 6*k+1, 6*k+7, 6*k+13, 6*k+19 are consecutive primes.at n=31A090839
• 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)^(-7).at n=12A114359
• Sum of squares of four consecutive primes.at n=23A133524
• The sum of the necessary diagonal movements from each square unit of an n X n+1 rectangle to reach any of the corners of the rectangle.at n=40A279034
• Duplicate of A090839.at n=31A296055
• Cardinality of the ramified symmetric inverse monoid R(IS_n).at n=4A378232