34204

Appears in sequences

• a(n) is the concatenation of n and 6n.at n=33A009440
• a(n) = 60*(n^5/120 + n^4/24 + n^3/6 + n^2/2 + n + 1).at n=7A127883
• Growth series for group with presentation < S, T : S^2 = T^3 = (S*T)^10 = 1 >.at n=30A298812