122736

Appears in sequences

• Concatenation of first n numbers - n!. a(n) = 1234567891011... up to n - 1*2*3*4*5*6*7*8*9*10*11... up to n.at n=5A083448
• Triangle read by rows. Number T(n, k) of partitions of the multiset [1, 1, 1, 1, 1, 2, 2, 2, 2, 2, ..., n, n, n, n, n] into k nonempty subsets, for 5 <= k <= 5n.at n=46A360039