54945
domain: N
Appears in sequences
- Palindromic quotients (k*(k+1)*(k+2)) / (k+(k+1)+(k+2)).at n=10A032790
- Palindromes with exactly 6 prime factors (counted with multiplicity).at n=29A046332
- Smallest palindromic multiple of 11, sum of whose digits at some stage is equal to n.at n=26A083516
- Numbers equal to a permutation (or rearrangement) of the digits of the sum of their proper divisors. Rearrangements which cause leading zeros are excluded.at n=38A085844
- Palindromic in bases 10 and 32.at n=27A099165
- a(n+1) = least palindrome not already used that is either a divisor or multiple of a(n) such that the ratios a(n+1)/a(n) are all distinct.at n=39A111678
- Row sums of triangle A177390.at n=4A177394
- Number of simple labeled graphs on n nodes with exactly 9 connected components that are trees or cycles.at n=3A215859
- Number of simple labeled graphs on n+3 nodes with exactly n connected components that are trees or cycles.at n=9A215863
- Hilltop maps: number of n X 2 binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..1 n X 2 array.at n=7A218657
- T(n,k) = Hilltop maps: number of n X k binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..1 n X k array.at n=37A218663
- T(n,k) = Hilltop maps: number of n X k binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..1 n X k array.at n=43A218663
- Members of a pair (m,k) such that sigma(m) = sigma(k) = sigma(m+k), m < k where sigma = A000203.at n=21A239436