68574961

Appears in sequences

• a(n) = (3*n+1)^4.at n=30A016780
• a(n) = (5*n + 1)^4.at n=18A016864
• a(n) = (6*n + 1)^4.at n=15A016924
• a(n) = (7*n)^4.at n=13A016984
• a(n) = (8*n+3)^4.at n=11A017104
• a(n) = (9n+1)^4.at n=10A017176
• a(n) = (10*n + 1)^4.at n=9A017284
• a(n) = (11*n + 3)^4.at n=8A017428
• a(n) = (12*n + 7)^4.at n=7A017608
• a(n) = binomial(n+2, 2)^4.at n=12A059977
• a(n) = (prime(n)*prime(n+2))^4.at n=3A096968
• Numbers with prime factorization p^4*q^4.at n=26A189991
• Smallest m such that m can be written in exactly n ways as x^2 + xy + y^2 with 0 <= x <= y.at n=13A198799
• Number of (n+2) X 4 binary arrays avoiding patterns 001 and 011 in rows and columns.at n=21A202094
• Fourth powers that become prime when their most significant (leftmost) decimal digit is removed.at n=7A226092
• Higher powers that are sums of two distinct higher powers.at n=22A226777
• Squares that are both a sum and a difference of two positive cubes.at n=6A230717
• Number of (n+1)X(3+1) 0..1 arrays with nondecreasing sum of every two consecutive values in every row and column.at n=22A250427
• Smallest k such that circle centered at the origin and with radius sqrt(k) passes through exactly 6*n integer points in the hexagonal lattice (see A004016).at n=24A343771
• a(n) is the smallest nonnegative integer k where there are exactly n nonnegative integer solutions to x^2 + 3*y^2 = k.at n=13A374286