480060

Appears in sequences

• Number of periodic palindromes using exactly five different symbols.at n=15A056491
• The triangle T_2(n, m), where T_2(n, m) is the number of surjective multi-valued functions from {1, 1, 2, 3, ..., n-1} to {1, 2, 3, ..., m} by rows (n >= 1, 1 <= m <= n).at n=40A172106
• Expansion of (1/x) * Series_Reversion( x / ((1+x)^2 * (1+x^3*(1+x)^2)) ).at n=10A387774