250705

Appears in sequences

• Numbers k such that k^3 is palindromic in base 12.at n=11A046245
• a(n) = (n+1)*(n+2)*(n+3)*(9n+4)/24.at n=27A051798
• a(n) = a(n-1) + a(n-3) + a(n-4), n >= 4, with initial terms -1,3,2,1.at n=27A111572
• a(n) = 1 + n^2 + n^3 + n^5.at n=11A123650
• Numbers n such that sigma(n)/phi(n) = 25/9, where sigma = A000203, phi = A000010.at n=7A165630
• The least common multiple of 1 + n^2 and 1 + n^3.at n=12A281661
• Total number of nodes summed over all nonnegative lattice paths from (0,0) to (n,0) where the allowed steps at (x,y) are (1,v) with v in {-1,0,...,max(y,1)}.at n=12A333106
• Numbers k such that (2^k-1)^k == 1 (mod (2^k+1)*k^2) and 2^(k-1) != 1 (mod k).at n=7A384148