27216

Appears in sequences

• Denominators of coefficients of Green function for cubic lattice.at n=4A003300
• Expansion of theta series of {E_7}* lattice in powers of q^(1/2).at n=35A003781
• Theta series of the coset of the E_7 lattice in its dual.at n=8A005931
• Theta series of direct sum of 4 copies of hexagonal lattice.at n=10A008655
• a(n) is the concatenation of n and 8n.at n=26A009470
• a(n) = Sum_{k=1..n} k*[ (n/k)*[ (n/k)*[ n/k ] ] ].at n=25A024933
• Expansion of 1/((1-2x)(1-4x)(1-6x)(1-8x)).at n=4A025966
• Triangle read by rows: T(n, k) = (k+1)*A132393(n+1, k+1), for 0 <= k <= n.at n=41A028421
• a(n) = A029572(n) / 24.at n=10A029588
• Theta series of 8-dimensional strongly 6-modular lattice O(6) with minimal norm 3.at n=40A029720
• Nonzero coefficients in theta series of {E_7}* lattice.at n=17A030443
• Digits d in decimal expansion of n replaced with d^3.at n=36A048390
• Positive numbers n such that n is a multiple of (product of digits of n) * (sum of digits of n).at n=17A049102
• a(n) = Sum_{d|n, n/d=1 mod 4} d^3.at n=29A050462
• Numbers k such that k^10 == 1 (mod 11^4).at n=17A056094
• Number of periodic palindromes using a maximum of six different symbols.at n=9A056488
• Irregular triangle read by rows: T(n,k) = number of elements of order k in symmetric group S_n, for n >= 1, 1 <= k <= g(n), where g(n) = A000793(n) is Landau's function.at n=58A057731
• Numbers that are the products of distinct substrings (>1) of themselves and do not end in 0.at n=29A059470
• Number of degree-n permutations of order exactly 10.at n=8A061124
• Product of all distinct nonzero numbers that can be formed from the digits of n.at n=26A061497