28200

Appears in sequences

• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,9.at n=23A064241
• a(n) = 49*n^2 - n.at n=23A157923
• a(n) = 196*n^2 - 2*n.at n=11A158224
• a(n) = 576*n^2 - 24.at n=6A158636
• Numbers that are 4-digit palindromes in at least 2 bases.at n=35A180453
• Principal diagonal of the convolution array A213819.at n=23A213820
• Non-palindromic numbers n such that n * reverse(n) is a square and n and reverse(n) do not have the same number of digits.at n=40A322835
• G.f. A(x) satisfies: 4 = Sum_{n=-oo..oo} (-x)^(n*(n+1)/2) * A(x)^(n*(n-1)/2).at n=3A354664