255150

Appears in sequences

• Theta series of (putative) extremal 3-modular even lattice in dimension 42.at n=4A034631
• Triangle formed by multiplying Stirling numbers of 2nd kind S2(n,m) (A008277) by m+1.at n=49A069138
• Stirling2 triangle with scaled diagonals (powers of 9).at n=24A075504
• Fourth column of triangle A075504.at n=3A076010
• Smallest m such that the m-th Lucas number has exactly n divisors that are also Lucas numbers.at n=43A356666