62121

Appears in sequences

• Numbers that are the sum of 9 positive 9th powers.at n=33A003398
• Numbers that are the sum of 4 nonzero 10th powers.at n=8A004804
• Numbers that are the sum of at most 4 nonzero 10th powers.at n=24A004899
• Numbers that are the sum of at most 5 nonzero 10th powers.at n=33A004900
• Consider all sublists of [(2,1),(3,2,1),(4,3,2,1),...,(n,...,4,3,2,1)] and multiply these permutations in that order. How many of the products are n-cycles?at n=20A068330
• Numbers k such that sum of the divisors of k equals the sum of the reversals of the divisors of k. Numbers with all palindrome divisors are not in the sequence.at n=25A196677
• Number of (n+1) X (1+1) 0..2 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2 X 2 subblock.at n=8A235877
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2X2 subblock.at n=36A235884
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2X2 subblock.at n=44A235884