49728

Appears in sequences

• Number of ways of writing n as a sum of 7 squares.at n=23A008451
• a(n) = (n^2 - 1)*(n^2 - 3).at n=15A033596
• a(n) = 3*2^(2*(n-1)) + 2^(n-2)*(n+1).at n=8A087438
• Numbers sandwiched between two numbers having only one prime divisor (at least) one of which is composite.at n=37A088072
• a(n) = a(n-1)+a(n-2)-a(n-3)+a(n-5), n>7.at n=32A107287
• 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), (0, 0, 1), (0, 1, -1), (0, 1, 0), (1, 0, 0)}.at n=8A151057
• Numbers with prime factorization pqrs^6.at n=30A190292
• Expansion of Product_{k>=1} (1 + 2*x^k)/(1 - x^k).at n=21A264686
• Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=8A299558
• Numbers such that the two adjacent integers are a prime and the square of another prime.at n=21A347194
• Let p = A002145(n) be the n-th prime == 3 (mod 4); a(n) is the multiplicative order of 2+-i modulo p in Gaussian integers.at n=25A385165
• Numbers k for which sigma(k) >= 2*k and (sigma(k) - 2*k) AND k = k, where AND is bitwise-and, A004198.at n=32A388026