29188

Appears in sequences

• Numbers equal to a permutation (or rearrangement) of the digits of the sum of their proper divisors. Rearrangements which cause leading zeros are excluded.at n=28A085844
• 0 together with numbers k such that 8*R_k - 7 is a prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=17A099421
• Group the triangular numbers so that the n-th group sum is a multiple of n. 1, (3, 6, 10, 15), (21), (28), (36, 45, 55, 66, 78), (91, 105, 120, 136, 153, 171, 190), ... Sequence contains n-th group sum divided by n.at n=34A114032
• Triangle t(n,m) = 2*A008292(n+1,m+1) - A007318(n,m), a linear combination of Eulerian numbers and Pascal's triangle, 0 <= m <= n.at n=38A141690
• Triangle t(n,m) = 2*A008292(n+1,m+1) - A007318(n,m), a linear combination of Eulerian numbers and Pascal's triangle, 0 <= m <= n.at n=42A141690
• A linear combination of A008292 and A130595: t(n,m)=2*A008292(n,m)- A130595(n,m).at n=38A141903
• A linear combination of A008292 and A130595: t(n,m)=2*A008292(n,m)- A130595(n,m).at n=42A141903
• Number of nondecreasing sequences of n 1..n integers with every element dividing the sequence sum.at n=14A212531
• Number of non-self-conjugate inseparable solutions of X + Y = 2Z (integer, disjoint triples from {1,2,3,...,3n}).at n=8A282617