45154

Appears in sequences

• Pisot sequence E(4,19), a(n) = floor( a(n-1)^2/a(n-2)+1/2 ).at n=6A010907
• Palindromes of form n(n+3).at n=6A028554
• Palindromes of the form 3n + 1 where n is also a palindrome: palindromes arising in A083829.at n=15A083830
• a(n) = T(n) concatenated with reverse(T(n)) divided by 11, where T(n) is the n-th triangular number.at n=31A084008
• Numbers k such that the quotient (sigma(k) + sigma(k+1) + sigma(k+2))/sigma(3*k+3) is an integer.at n=7A091292
• Palindromes n such that n+(product of digits of n) gives a larger palindrome.at n=13A114341
• Palindromes in A005448.at n=3A162703
• Numbers k such that prime(k+1)^prime(k+3) == prime(k) mod prime(k+2).at n=24A335571
• E.g.f.: Product_{k>=1} (1 - (exp(x) - 1)^k)^(1/k).at n=8A345751
• Centered triangular numbers which are products of three distinct primes.at n=23A359624