227701

Appears in sequences

• Number of length 7+3 0..n arrays with some disjoint pairs in every consecutive four terms having the same sum.at n=9A247539
• a(n) is the least number k whose digit sums are 2*n-1, 2*n and 2*n+1 in bases 2*n-1, 2*n and 2*n+1 respectively.at n=21A379896