32764

Appears in sequences

• a(n) = 2^n - 4.at n=13A028399
• n^3*a(n) is the number of circles in complex projective plane tangent to three smooth curves of degree n in general position.at n=30A030653
• Numbers having four 7's in base 8.at n=32A043452
• Numerators of coefficients in Taylor series for log(tan(x)/x).at n=7A047685
• Number of inequivalent bracelets from A006840 with the additional equivalence condition that subsets of 1-beads whose position vectors add to zero can be removed. Different values of vector sums of (-1)^(k/n) with k taking n values in 1..2n up to rotation and reflection.at n=14A077079
• Sum of terms in row n of A081532.at n=25A081533
• Number of triangular partitions of n of order 4.at n=20A084446
• Divisors of perfect numbers (A000396), sorted.at n=34A096360
• Let S(n)=Sigma(n)/2. Numbers n such that S(S(n))=n, 1/2-Sociable number of order 1 or 2.at n=21A113791
• Number of pairs of probabilistically independent subsets in a set composed of n elements.at n=13A121312
• Divisors of 33550336, the 5th perfect number.at n=15A133025
• Triangle read by rows: row n lists divisors of n-th perfect number A000396(n).at n=49A133031
• Divisors of 16775168 (half the 5th perfect number).at n=14A138815
• Triangle read by rows: row n lists the proper divisors of n-th perfect number A000396(n).at n=45A139246
• Triangle read by rows: row n lists the divisors of n-th perfect number A000396(n) that are multiples of n-th Mersenne prime A000668(n).at n=19A139247
• Numerator of s_{2n}, where s_0 = 1, s_n = | 2^n*(2^(n-1)-1)*Bernoulli(n)/n! | for n>0.at n=7A171078
• Smallest number m such that exactly n editing steps (insert or substitute) are necessary to transform the binary representation of m into the least prime not less than m.at n=14A171402
• a(n) = round((2^n - n - 1)/4).at n=16A173010
• Second diagonal under the main diagonal in A172119 written in a square (see comment).at n=13A173033
• Triangle read by rows: T(n,k) is the number of 2-compositions of n having k columns with an even sum (0<=k<=floor(n/2)).at n=36A181327