47125

Appears in sequences

• Numbers that are the sum of 2 nonzero squares in exactly 8 ways.at n=4A025291
• Numbers that are the sum of 2 nonzero squares in 7 or more ways.at n=4A025298
• Numbers that are the sum of 2 nonzero squares in 8 or more ways.at n=4A025299
• Numbers that are the sum of 2 distinct nonzero squares in exactly 8 ways.at n=4A025309
• Numbers that are the sum of 2 distinct nonzero squares in 7 or more ways.at n=4A025317
• Numbers that are the sum of 2 distinct nonzero squares in 8 or more ways.at n=4A025318
• Quotients k*(k+1)*(k+2) / (k+(k+1)+(k+2)) that are lucky numbers.at n=27A032792
• Number of diagonal dissections of an n-gon into 3 regions.at n=25A033275
• a(n) = floor((1/2 * (sqrt(2) + 1 + sqrt(2*sqrt(2) - 1)))^n ).at n=17A050243
• a(n) = n^4/2 - n^3 + 3*n^2/2 - n + 1 = (n^2 + 1)*(n^2 - 2*n + 2)/2.at n=18A058919
• a(n) = n*(2*n^2 - 2*n + 1).at n=29A059722
• Numbers n that are the hypotenuse of exactly 31 distinct integer-sided right triangles, i.e., n^2 can be written as a sum of two squares in 31 ways.at n=1A097244
• RMS values of the RMS numbers: a(n) is the root mean square of the divisors of A140480(n).at n=20A141812
• a(n) = n*(n+1)*(6*n-5)/2.at n=25A172082
• Numbers expressible as sum of squares of two distinct positive triangular numbers exactly in two ways.at n=0A212842
• Numbers that are multiple-digit narcissistic numbers in exactly four bases.at n=6A256363
• Markoff spectrum N^(5)(Lambda).at n=30A293173
• a(n) = (n-1)*(n-2)*(n+3)*(n+2)/12.at n=27A299120
• Composite numbers m such that A309132(m) <= m.at n=14A309235
• Composite k that divides 2^(k-2) + 3^(k-2) + 6^(k-2) - 1.at n=43A318761