1264321
domain: N
Appears in sequences
- a(n) is the reverse concatenation of divisors of n.at n=11A176558
- a(n) = A176558(A175354(n)) = numbers m as reverse concatenations of divisors of numbers from A175354, where A175354 = numbers k such that reverse concatenations of divisors of k are nonprimes.at n=8A176588
- Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=11A300876