19190

Appears in sequences

• Expansion of Product_{m>=1} (1+x^m)^2.at n=31A022567
• Numbers n for which there are exactly six k such that n = k + (product of nonzero digits of k).at n=12A096927
• Non-palindromic numbers n such that phi(n) = phi(reversal(n)).at n=17A097647
• Number of sets of points determined by the intersection of a line with an n X n grid of points.at n=17A119438
• Number of permutations of length n which avoid the patterns 4321 and 3142.at n=9A165530
• a(n) = (190/99)*(100^A001651(n)-1).at n=1A229903
• Numbers n such that the decimal digits of n-phi(n) are a permutation of those of n.at n=38A273799
• Numbers of closed affine (a.k.a. BCK) lambda terms of natural size n.at n=14A287141
• a(n) = n*(n + 1)*(16*n - 1)/6.at n=19A304659
• Sum of the largest parts of the partitions of n into 9 squarefree parts.at n=45A326532