54756

Appears in sequences

• a(n) = (6*n)^2.at n=39A016910
• a(n) = (8*n + 2)^2.at n=29A017090
• a(n) = (9*n)^2.at n=26A017162
• a(n) = (10*n + 4)^2.at n=23A017318
• a(n) = (11*n + 3)^2.at n=21A017426
• a(n) = (12*n + 6)^2.at n=19A017594
• "EFK" (unordered, size, unlabeled) transform of 1,3,5,7,...at n=19A032304
• Squares with initial digit '5'.at n=19A045788
• a(n) = Sum_{k=1..n, gcd(n,k) = 1} k^3.at n=25A053819
• Largest square <= n^3.at n=38A065733
• Starting from a(1)=7, each subsequent term is the minimal square obtained by inserting at least one digit into the previous term.at n=3A068616
• a(1) = 1, then smallest square not included earlier such that every partial sum is a prime.at n=34A073852
• Nearest integer square to n^3.at n=38A077118
• Smallest square obtained by inserting one or more digits between every pair of consecutive digits of n^2.at n=23A080438
• Number of ways to place n+1 queens and a pawn on an n X n board so that no two queens attack each other (symmetric solutions count only once).at n=12A103331
• Squares for which the sum of the digits are cubes.at n=20A117685
• Square perimeters of primitive Pythagorean triangles.at n=8A120089
• Numbers k such that sigma(tau(k)) = rad(k).at n=10A173582
• Square array T(n, k) = v(k, n)((1)), where v(n, q) = M*v(n-1, q), M = {{0, 1, 0}, {0, 0, 1}, {8*q^3, 6*q, 0}}, with v(0, q) = {1, 1, 1}, read by antidiagonals.at n=38A173747
• Number of reduced 3 X 3 magilatin squares with magic sum n.at n=34A174020