37440

Appears in sequences

• Sums of 4 distinct powers of 8.at n=14A038486
• a(n) = Xpower(n,3).at n=36A048732
• E.g.f. satisfies A(x) = 1 + x * A(x / (1 - x)).at n=6A048800
• Sum of divisors of those numbers n such that n and n+1 have the same sum of divisors.at n=13A053215
• Numbers k such that phi(k) and cototient(k) are squares but k is not in A054755.at n=18A054756
• When expressed in base 3 and then interpreted in base 8, is a multiple of the original number.at n=51A062889
• Numbers m such that sigma(4m+5) = 6m.at n=5A067679
• Engel expansion of sinh(1/3).at n=32A068380
• Numbers n such that the Diophantine equation x^4+y^5=n^4 has solutions.at n=43A070756
• Compute S, the number of different quadratic residues modulo B for every base B. If the density S/B is smaller for B than for every B' less than B, then B is added to the sequence.at n=36A085635
• Records in A000118.at n=45A128690
• A Lucas-Binet triangle read by rows: t(n,m)=((( 1 + Sqrt[Prime[n]]))^m + (( 1 - Sqrt[Prime[n]]))^m)/2.at n=50A140895
• Number of permutations of 0..n-1 with all sums of 2 through 2 adjacent terms squared respectively unique.at n=7A147731
• Number of permutations of 1..n with all sums of 2 through 2 adjacent terms squared respectively unique.at n=7A147736
• Number of permutations of 2..n+1 with all sums of 2 through 2 adjacent terms squared respectively unique.at n=7A147741
• Number of permutations of floor(i*4/3), i=0..n-1, with all sums of 6 adjacent terms unique.at n=7A152371
• Number of permutations of floor(i*9/7), i=0..n-1, with all sums of 6 adjacent terms unique.at n=7A152386
• a(n) = 65*n^2.at n=23A165798
• Numbers with prime factorization pqr^2s^6.at n=3A190474
• (n-1)-st elementary symmetric function of {3, 3, 4, 4, 5, 5,..., Floor[(n+5)/2]}.at n=6A203155