42240

Appears in sequences

• a(n) = binomial(n,3)*2^(n-3).at n=8A001789
• Number of n-step polygons on f.c.c. lattice.at n=6A002899
• Denominators of expansion of Fresnel integral S(z).at n=2A003031
• a(n) = 2^(n-4)*C(n,4).at n=7A003472
• Number of tree-rooted planar maps with 4 faces and n vertices and no isthmuses.at n=5A006471
• Poincaré series [or Poincare series] of Lie algebra associated with a certain braid group.at n=18A007993
• a(n) = 2^n*n!*(2*n+1).at n=5A014481
• A convolution triangle of numbers generalizing Pascal's triangle A007318.at n=39A049325
• Number of ways of getting 5 of a kind, a straight flush, full house, flush, 4 of a kind, straight, 2 pair, 3 of a kind, a pair in deuces-wild poker.at n=7A057797
• Triangle related to generalized Catalan numbers A064340.at n=25A067327
• Numbers that are palindromic in base 2 as well as in base 10 (initial zeros may be prepended).at n=49A069024
• Triangle of coefficients in expansion of sinh^2(n*x) in powers of sinh(x).at n=32A082649
• Triangle read by rows: T(n,m) = 4^m * (2*n+1)! / ( (2*n - 2*m + 1)! * (2*m)! ), row n has n+1 terms.at n=19A085840
• Consider iteration of the function f(x) = phi(sigma(x)) = A062401(x). Sequence gives numbers n such that the trajectory of n returns to n.at n=44A096850
• Coefficients of polynomials D(n,x) related to median Euler numbers.at n=16A098277
• Maximum number of pairwise incomparable subcubes of the discrete n-cube. Largest antichain in partial ordering {0,1,*}^n where 0 and 1 are less than *. Maximum number of implicants in an irredundant disjunctive normal form for n Boolean variables.at n=11A109388
• Triangle read by rows: T(n,k)=k^3*2^k*binomial(2n-k,n-k)/(2n-k) (1<=k<=n).at n=31A112327
• Riordan array (1/(1-2x),x/(1-2x)^2).at n=47A114192
• Number of circular permutations of {1, 2, ..., n}, where every next element in binary notation has ones at the same or adjacent positions of previous element's binary ones.at n=11A115507
• Skew triangle associated to the Euler numbers.at n=73A117411