25132

Appears in sequences

• Numbers that are the sum of 5 positive 7th powers.at n=35A003372
• Numbers m such that 2*phi(m) = phi(m+1).at n=23A050472
• Numbers k such that 149*2^k-1 is prime.at n=9A050616
• Expansion of (1-x)/(1+x+x^2+2*x^3).at n=34A078047
• Number of configurations of the sliding block 8-puzzle that require a minimum of n moves to be reached, starting with the empty square at mid-side.at n=23A089483
• Area of annuli of consecutive integer thickness.at n=19A114378
• a(n) = 4*3^n+4^n.at n=7A147536
• Number of zig-zag paths from top to bottom of a rectangle of width 11 with n rows whose color is that of the top right corner.at n=13A153369
• Number of zig-zag paths from top to bottom of a rectangle of width 11 with n rows whose color is not that of the top right corner.at n=13A153370
• Number of zig-zag paths from top to bottom of a rectangle of width 11 with 2n rows whose color is that of the top right corner.at n=6A153371
• Numbers k such that sigma(k - 2) = sigma(k + 2).at n=25A223091
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 414", based on the 5-celled von Neumann neighborhood.at n=39A272014
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 459", based on the 5-celled von Neumann neighborhood.at n=33A272289
• Composite numbers k such that phi(k) * psi(k) + 1 is a perfect square, where phi is the Euler totient function (A000010) and psi is the Dedekind psi function (A001615).at n=36A309653