50405

Appears in sequences

• Palindromes of form k^2 + k + 5.at n=8A027728
• Numerators of continued fraction convergents to sqrt(875).at n=13A042690
• Numbers that are palindromic and divisible by 5.at n=27A043040
• Triangle read by rows in which row n gives n smallest n-digit multiples of n that are palindromes.at n=14A084024
• Diagonal of A084024.at n=4A084026
• Diagonal sums of number triangle A113582.at n=33A154324
• Numbers k with squares that are concatenations k^2 = x//y such that x is an anagram of y.at n=17A162945
• n * (11*n^2 + 6*n + 1) / 6.at n=30A215646
• Number of cyclotomic cosets of 7 mod 10^n.at n=26A220019
• Palindromes of the form 4n + 1 that are divisible by 5.at n=15A256704
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 155", based on the 5-celled von Neumann neighborhood.at n=7A270326
• Number of square twice-partitions of n.at n=33A306318
• Expansion of Product_{k>=1} (1 - (x/(1+x))^k).at n=19A307548
• Sum of the prime numbers in, but not on the border of, an n X n square array whose elements are the numbers from 1..n^2, listed in increasing order by rows.at n=28A344847
• Nonprime base-10 palindromes whose arithmetic derivative is a base-10 palindrome.at n=29A363248