106929

Appears in sequences

• a(n) = (8*n + 7)^2.at n=40A017150
• a(n) = (11*n + 8)^2.at n=29A017486
• a(n) = (12*n + 3)^2.at n=27A017558
• Odd refactorable numbers.at n=35A036896
• Squares sandwiched between two numbers divisible by squares.at n=21A088068
• Squares of the form n+prime(n).at n=32A104992
• Squares for which the sum of the digits are cubes.at n=39A117685
• Squares for which both the sum of the digits and the product of the digits are cubes.at n=9A117687
• RF(3): refactorable numbers with smallest prime factor 3.at n=33A120319
• Permutational numbers A134640 which are squares.at n=6A134741
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 0, -1), (1, 0, 1), (1, 1, 0)}.at n=9A150353
• Ulam numbers that are perfect squares.at n=37A173545
• Squares k such that gcd(sigma(k),usigma(k)) > 1, where usigma is A034448.at n=28A193003
• Perfect squares which can be written in all the four forms a^2+b^2, a^2+2*b^2, a^2+3*b^2 and a^2+7*b^2, with a > 0 and b > 0.at n=25A216682
• Numbers whose base-3 representation is a square when read in base 10.at n=38A267763
• Squares s such that s + 2 and s - 2 are semiprime.at n=40A278022
• Powerful numbers k such that both k-1 and k+1 are in A126706.at n=38A378629
• Squares in A386687.at n=8A386688