105525
domain: N
Appears in sequences
- Centered cube numbers: n^3 + (n+1)^3.at n=37A005898
- cosh(arctanh(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+51/4!*x^4-180/5!*x^5...at n=8A013164
- Numbers that are sums of two or more consecutive (positive) cubes in more than 1 way.at n=2A062682
- a(n) = n*(n+1)*(n^2 + 21*n + 50)/24.at n=34A101854
- Numbers k such that 2k+1, 4k+1, 6k+1, 8k+1 and 10k+1 are primes.at n=6A124410
- Numbers k such that 2k+1, 4k+1, 6k+1, 8k+1, 10k+1 and 12k+1 are primes.at n=2A124411
- a(n) = phi(C(n)) / gcd(C(n)-1, phi(C(n))), where C(n) is the n-th Cullen number.at n=17A195418
- Smallest number k such that k*n +/- 1, k*n^2 +/- 1, and k*n^3 +/- 1 are three sets of twin primes. a(n) = 0 if no such number exists.at n=1A239021
- Numbers that are sums of consecutive (positive) cubes in more than one way.at n=5A265845
- Number of ways to write n as an ordered sum of 7 squarefree numbers.at n=24A341067
- Numbers that are divisible by the squares of two distinct primes and whose arithmetic derivative (A003415) is a squarefree number of the form 4k+2.at n=32A368697