44744

Appears in sequences

• Palindromes with exactly 6 prime factors (counted with multiplicity).at n=22A046332
• Palindromic integers > 0, whose 'Reverse and Add!' trajectory (presumably) does not lead to another palindrome.at n=22A070001
• a(n)=12*sum(1<=i<=j<=k<=n,i*j/k).at n=17A088941
• Number of distinct shuffles of the identity permutation on n letters with the halfway-wrapped around permutation k+1,k+2,...,n-1,n,1,2,...,k where k=floor(n/2).at n=8A145208
• Expansion of (1-x)*(1-3*x)*(1-3*x+x^2)/(1-9*x+28*x^2-35*x^3+15*x^4-x^5).at n=9A224514
• a(n) = 4*a(n - 1) + 2*a(n - 2) for n>1, a(0)=3, a(1)=5.at n=7A268409
• Numbers with digits 4 and 7 only.at n=34A284971
• Lexicographically first sequence of distinct terms such that the sum of any two terms is not a term of the sequence, and the sum of any two digits is not a digit of the sequence.at n=36A302938
• a(n) = 4*(10^(2*n+1)-1)/9 + 3*10^n.at n=2A332147
• Number of paths of length n starting at initial node of the path graph P_10.at n=18A336675
• a(n) = prime(n)^2 + prime(n+1).at n=46A352851
• Palindromes that can be written in more than one way as the sum of two distinct palindromic primes.at n=36A356854
• Choose two different numbers x and y from 2 to 9. a(n) is the number that consists solely of the digits x or y and is the smallest number divisible by both of them.at n=15A380568
• a(n) is the smallest positive integer k which has the same set of digits as n, and k is divisible by each nonzero digit of n, or -1 if no such number exists.at n=46A390761