229376
domain: N
Appears in sequences
- Numbers that are not the sum of 4 nonzero squares.at n=33A000534
- Theta series of E_8 lattice with respect to deep hole.at n=23A004017
- a(n) = 7*2^n.at n=15A005009
- Numbers that have a unique partition into a sum of four nonnegative squares.at n=32A006431
- Theta series of D*_14 lattice.at n=11A022067
- Numbers of the form 2^k or 7*2^k.at n=33A029746
- Numbers n such that uphi(sigma(n)) = n, where the uphi is the unitary phi function A047994.at n=28A030164
- a(n) = n*2^n.at n=14A036289
- Number of labeled 3-trees with n nodes.at n=7A036362
- Numbers of form 7^i*8^j with i, j >= 0, sorted.at n=26A036566
- Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*8^j.at n=29A038238
- Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*4^j.at n=34A038282
- Numbers k such that d(k)^3 divides k.at n=9A046755
- Expansion of e.g.f. x^2*exp(4*x).at n=8A052780
- First differences of 8^n (A001018).at n=6A055274
- Coefficient triangle for certain polynomials.at n=22A055864
- Second column of triangle A055864.at n=6A055865
- a(n) = n*omega(n)^n where omega(n) is the number of distinct prime divisors of n.at n=13A061340
- n*bigomega(n)^n, where bigomega(n) is the number of prime divisors of n, counted with multiplicity.at n=13A061452
- Numbers k such that k = 2*phi(k) + phi(phi(k)).at n=29A063920