28428

Appears in sequences

• Number of cubes of primes <= 2^n.at n=55A060969
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,11.at n=10A064242
• Coefficients in the expansion of C/B^2, in Watson's notation of page 106.at n=21A160461
• Number of length n+2 0..4 arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero.at n=4A253125
• T(n,k)=Number of length n+2 0..k arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero.at n=32A253129
• Number of length 5+2 0..n arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero.at n=3A253133
• Number of length-4 0..n arrays with no repeated value differing from the previous repeated value by other than plus two, zero or minus 1.at n=11A269620
• a(n) = 2^(-1 + (n + n mod 2)/2)*abs(permanent(M_n)) where M_n is the n X n matrix M_n(j, k) = cos(Pi*j*k/n) if n >= 1 and a(0) = 1.at n=13A347929
• Triangle read by rows. T(n, k) = k! * BellPolynomial(n, k).at n=30A350258
• a(n) is the number of terms less than A276086(n) in the range of A276086, where A276086 is the primorial base exp-function.at n=58A376411
• G.f. A(x) satisfies x + x^2 = A(A(x)) - A(A(A(x)))^2.at n=7A384831
• Numbers k such that k + sopfr(k) is a fourth power.at n=6A387246