51846domain: NAppears in sequencesPosition of 5^n in A051037 (5-smooth numbers).at n=44A188427Number of length-n ternary words containing no even palindromes of length > 0 and no odd palindromes of length > 3.at n=24A330132Nonprimes k such that k^2 - sopfr(k)^2 is a square, where sopfr = A001414.at n=4A385885