28548

Appears in sequences

• Convolution triangle based on A001333(n), n >= 1.at n=48A054458
• a(n) = n^4 - n.at n=13A058895
• Numbers whose set of base 13 digits is {0,C}, where C base 13 = 12 base 10.at n=14A097259
• a(n) = prime(n)^4 - prime(n).at n=5A138401
• a(n) = 169*n^2 - n.at n=12A157998
• a(n) = 169*n^2 - 13.at n=12A158550
• Number of conjugacy classes in GL(n,13).at n=4A182606
• Permutations in S_n avoiding the patterns {4321, 34512, 45123, 35412, 43512, 45132, 45213, 53412, 45312, 45231}.at n=9A191721
• Quadruples (a,b,c,d) of the form ( n*(n^3-1), n^3-1, 2*n^3+1, n*(n^3+2) ).at n=48A204767
• Triangle of coefficients of polynomials v(n,x) jointly generated with A209695; see the Formula section.at n=51A209696
• a(1) = 1; a(n) = Sum_{k=1..n} a(ceiling((n-1)/k)).at n=44A290845
• a(n) is the first average of a twin prime pair that is the sum of two distinct averages of twin prime pairs in exactly n ways.at n=32A358463
• Number of conjugacy classes in the group GL(4,Z_n).at n=12A364770