31254

Appears in sequences

• Number of ordered 5-tuples of integers from [ 1,n ] with no common factors among quadruples.at n=19A015653
• Number of 1's in n-th term of A007651.at n=39A022466
• 10*n^n+(n-1).at n=4A089211
• a(n) = sum of n-th column in array in A100452.at n=32A100454
• Numbers with 5 distinct digits {1,2,3,4,5} such that all adjacent digits (as well as first and last digits) are coprime.at n=24A104972
• Number of (n+1) X (7+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=7A258553
• Number of 1-dimensional sandpiles with n grains piling up against the wall.at n=22A291896
• Decimal encoding T(n,k) of the k-th non-averaging permutation of [n]; triangle T(n,k), n >= 0, k = 1..A003407(n), read by rows.at n=25A292523
• Decimal representation of permutations of lengths 1, 2, 3, ...at n=44A306428
• Derangements of {1,2,...,n} (n >= 2) in lexicographic order.at n=23A320588
• Consider the primes of the form p(m)=m^2+1 such that p(m+2) is also prime for some m. The sequence lists the sums p(m) + p(m+2).at n=5A351170
• Number of distinct n-digit suffixes generated by iteratively multiplying an integer by 4, where the initial integer is 1.at n=6A362468