40441

Appears in sequences

• Numbers n such that n^2 + (n+1)^2 + (n+2)^2 is palindromic.at n=10A027573
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 19.at n=13A031607
• Sums of nonconsecutive factorial numbers.at n=43A060112
• Semiprimes (A001358) that are sums of distinct factorials.at n=44A115646
• Numbers that can be written using its own digits in order and by using addition and factorial operators.at n=14A195670
• Number of partitions of n with difference 6 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=44A242697
• Least number k such that (n!+k)/n and (n!-k)/n are both prime.at n=34A245697
• a(n) = Sum_{k=0..floor(n/4)} (n-3*k)!/k!.at n=8A357949