117128
domain: N
Appears in sequences
- Generalized Euler phi function (for p=3).at n=10A003474
- Denominator of sum of -4th powers of divisors of n.at n=21A017672
- Denominator of sum of -5th powers of divisors of n.at n=21A017674
- Numbers whose prime factors are 2 and 11.at n=30A033848
- Number of stars brighter than visual magnitude n-1.at n=16A053406
- Numbers of the form (8^i)*(11^j), with i, j >= 0.at n=19A107788
- a(n) = ceiling((n+1)^4/2).at n=21A171714
- Products of the 4th power of a prime and a distinct prime of power 3 (p^4*q^3).at n=15A179666
- Number of compositions of odd natural numbers into 4 parts <= n.at n=21A191903
- Number of 2 X 2 matrices with all terms in {0,1,...,n} and even trace.at n=21A210378
- Number of 2 X 2 matrices with all terms in {0,1,...,n} and odd trace.at n=21A210379
- Numbers with 5 odd divisors.at n=32A267696
- Numbers k such that k^3 is the sum of two nonzero 4th powers.at n=12A291849
- Pairs of numbers producing consecutive odd sums of divisors, i.e., sigma(a(2*k)) = sigma(a(2*k-1)) + 2, with sigma values given in A300779.at n=7A300780
- Cubefull numbers whose number of coreful divisors is divisible by their number of exponential divisors.at n=33A382064