221442
domain: N
Appears in sequences
- Even elements to the right of the central elements of the 5-Pascal triangle A028313.at n=41A028321
- Number of length 1+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth.at n=20A249291
- Numbers k such that there are exactly 9 numbers j for which binomial(k, floor(k/2)) / binomial(k,j) is an integer, i.e., A080383(k) = 9.at n=29A327431