43371
domain: N
Appears in sequences
- a(n) = a(n-1) + a(n-4) with a(0) = 0, a(1) = a(2) = a(3) = 1.at n=36A003269
- [ n(n-1)(n-2)(n-3)/7 ].at n=25A011917
- Expansion of (1-x)/(1-x-x^4).at n=39A017898
- Numbers n such that 25*2^n-1 is prime.at n=31A050538
- a(n) is its own 4th difference.at n=8A055991
- Total number of square parts in all partitions of n.at n=32A073336
- Sum C(n-3k,k-1), k=0..floor(n/4).at n=38A099561
- INVERT transform of A027656: (1, 0, 2, 0, 3, 0, 4, 0, 5, ...).at n=17A158943
- Integer nearest f(2^n), where f(x) = Sum of ( mu(k) * H(k)/k^(3/2) * Integral Log(x^(1/k)) ) for k = 1 to infinity, where H(k) is the harmonic number Sum_{i=1..k} 1/i.at n=18A201542
- Numbers n such that there are precisely 11 groups of orders n and n + 1.at n=5A295994
- Number of compositions (ordered partitions) of n into nonprime parts not greater than sqrt(n).at n=35A368873
- Number of compositions (ordered partitions) of n into squares not greater than sqrt(n).at n=35A369342