57777

Appears in sequences

• Number of points of norm <= n in cubic lattice.at n=24A000605
• Numbers having four 7's in base 10.at n=5A043520
• Near-repdigit semiprimes with 7 as repeated digit.at n=26A105988
• a(n) is the smallest integer m, such that for every sufficiently large integer k, A165370(729*k+n) can be written as m followed by zero or more 9's.at n=39A346789