2889810

Appears in sequences

• Govindarajan's triangle C arising in enumeration of multi-dimensional partitions, read by rows.at n=61A216803
• a(n) = (n!)^2 * Sum_{k=0..n} (2*k)! / (2^k * (k!)^3 * (n - k)!).at n=7A331817
• Positive numbers k such that the decimal expansion of k^2 appears in the concatenation of the first k positive integers.at n=20A343536