60750
domain: N
Appears in sequences
- Numbers n such that S(n) = 0, where S(n) = (S(n-1) + A000040(n+1))*(-1)^n; S(0)=0, n >= 1.at n=23A131693
- Triangle T(n,k), n>=0, 0<=k<=n, read by rows: T(n,k) = number of simple graphs on n labeled nodes with k edges where each maximally connected subgraph consists of a single node or has a unique cycle of length 3.at n=42A144207
- Totally multiplicative sequence with a(p) = 3*(p+3) for prime p.at n=23A167322
- Floor(1/{(6+n^4)^(1/4)}), where {}=fractional part.at n=44A184630
- Number of nondecreasing strings of numbers x(i=1..8) in -n..n with sum x(i)^3 equal to 0.at n=22A188282
- Numbers with prime factorization pq^3r^5.at n=32A190011
- Number of (w,x,y) with all terms in {0,...,n} and 2*w >= |x+y-z|.at n=44A213397
- Sum of the partition parts of 3n into 3 parts.at n=29A235988
- LB numbers: positive integers of the form m = a*10^k+b (with a > 0 and b < 10^k) satisfying two properties: 1) the set of prime factors of m is the union of the sets of prime factors of a and b; and 2) A001222(m) = A001222(a) + A001222(b).at n=15A267856
- Primordial LB numbers: LB numbers (A267856) that are not of the form 10*n where n is also an LB number.at n=8A268269
- a(n) = Product_{i=0..n, j=0..n, k=0..n} (i*j*k + 1).at n=2A306907