55980

Appears in sequences

• a(n) = 3^n - 3*2^n + 3.at n=10A001117
• Triangle of numbers T(n,k) = k!*Stirling2(n,k) read by rows (n >= 1, 1 <= k <= n).at n=47A019538
• Number of palindromes of length n using exactly three different symbols.at n=18A056454
• Number of palindromes of length n using exactly three different symbols.at n=19A056454
• Number of primitive (aperiodic) palindromes using exactly three different symbols.at n=18A056464
• Number of periodic palindromes using exactly three different symbols.at n=18A056489
• Number of primitive (period n) periodic palindromes using exactly three different symbols.at n=18A056499
• T(n, k) = Sum_{j=0..n-k} (-1)^j*binomial(n - k + 1, j)*(n - k + 1 - j)^n. Triangle read by rows, T(n, k) for 1 <= k <= n.at n=52A090582
• Site series for second parallel moment of Kagome lattice.at n=10A120551
• The 3rd Witt transform of A000292.at n=12A147621
• Coefficients of expansion polynomials related to fish weight allometric equation: p(x,t)=-Exp[t*x]*(1 - Exp[t/3])^3.at n=28A171506
• A(k,3) where A(k,n) = Sum_{m=1..k} (-1)^(m+1) *binomial(n,m)*m^k.at n=9A179483
• Number of partitions of n containing at least one part m-3 if m is the largest part.at n=48A212543
• Smallest positive multiple of n whose base-6 representation contains only 0's and 1's.at n=19A244957
• Smallest positive multiple of n whose base-6 representation contains only 0's and 1's.at n=44A244957
• a(n) = Sum_{k=2..n} 6^k.at n=5A247840
• T(n, k) = k!*Stirling2(n - k, k), for n >= 0 and 0 <= k <= floor(n/2). Triangle read by rows.at n=52A344392
• Triangle read by rows: T(n,k) = Sum_{j=0..k} (-1)^j * binomial(k,j) * (3-j)^n.at n=58A391210