40472

Appears in sequences

• Starts for strings of at least five consecutive nonsquarefree numbers.at n=26A078144
• Number of binary words of length n containing at least one subword 101 and no subword 11.at n=22A143281
• First of three consecutive numbers with at least one 3 in their prime signature.at n=3A176350
• Irregular table read by rows, in which row n lists the factorions in base n, for n >= 2.at n=29A193163
• Numbers k such that k and k+1 are both of the form p*q^3 where p and q are distinct primes.at n=31A215173
• Number of 4 X n 0..1 arrays with rows nondecreasing and antidiagonals unimodal.at n=16A224135
• Floor(-1/n + 1/log((2n+1)/(2n-1))).at n=14A227512
• Number of (1+1) X (n+1) 0..3 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..3 introduced in row major order.at n=10A231464
• Numbers k such that prime(k) + 1, ..., prime(k + 5) + 1 have the same number of prime divisors (with multiplicity).at n=11A255193
• Starts of runs of 3 consecutive numbers that have an equal number of unitary and nonunitary divisors (A048109).at n=2A335397