219024

Appears in sequences

• Squares that are the sum of two consecutive primes.at n=30A062703
• Determinant of n X n matrix defined by m(i,j)=1 if i^2+j^2 is a prime, m(i,j)=0 otherwise.at n=47A071524
• Numbers of the form (6^i)*(13^j), with i, j >= 0.at n=22A107710
• Squares whose digit reversal is the product of 2 palindromes greater than 1.at n=36A115700
• Totally multiplicative sequence with a(p) = 2*(4p+1) = 8p+2 for prime p.at n=35A167336
• Number of n X 6 binary arrays without the pattern 0 1 diagonally or antidiagonally.at n=29A188821
• Numbers with prime factorization p^2*q^4*r^4 where p, q, and r are distinct primes.at n=5A190471
• Number of ways to place the maximal number of points that can be placed on a j X j X j triangular grid, j=3n-2, so that no pair of them has distance sqrt(3).at n=4A244506
• Perfect powers which are the sum of two consecutive primes.at n=36A245360
• Number of n-step excursions on the 9-dimensional f.c.c. lattice.at n=4A271672
• Numbers n such that the product of n and the sum of the reciprocal of their anti-divisors is an integer.at n=22A272890
• Number of maximum independent vertex sets in the n-triangular honeycomb grid graph.at n=12A297537
• Squares whose arithmetic mean of digits is 3 (i.e., the sum of digits is 3 times the number of digits).at n=22A316483
• Squares that are divisible by both the sum of their digits and the product of their nonzero digits.at n=29A339999
• Squares that are divisible by the product of their nonzero digits.at n=35A346537
• Squares of numbers divisible by the squares of two distinct primes.at n=21A378900
• Squares in A378769.at n=6A378984
• Powers k^m divisible by at least 2 cubes greater than 1, with m > 1 and nonsquarefree weak k (in A332785).at n=23A392098