12348945

Appears in sequences

• Number of permutations in S_n avoiding the strings 123, 321 and 231.at n=17A060696
• Sum of product of odd numbers <= n and the product of even numbers <= n.at n=15A076051
• Product of first n odd numbers plus product of first n even numbers: (2n-1)!! + (2n)!!, where k!! = A006882(k).at n=7A232617
• Values of k such that k^2 + 10 is a triangular number (A000217).at n=9A276602