1867681

Appears in sequences

• Palindromic in bases 6 and 10.at n=24A029963
• Palindromic in bases 10 and 36.at n=39A250412
• a(n) = n! * Sum_{k=0..floor(n/2)} (k+1)^(k-1) / (2^k * k! * (n-2*k)!).at n=10A362524