25752

Appears in sequences

• Coordination sequence for {A_5}* lattice.at n=10A008533
• Palindromic in bases 9 and 10.at n=17A029965
• Palindromic and divisible by 8.at n=36A045643
• Palindromes with exactly 6 prime factors (counted with multiplicity).at n=10A046332
• Starting positions of strings of 3 1's in the decimal expansion of Pi.at n=27A050209
• Number of ways to color vertices of a pentagon using <= n colors, allowing rotations and reflections.at n=12A060446
• Numbers that are palindromic in base 2 as well as in base 10 (initial zeros may be prepended).at n=45A069024
• Palindromes with successive increasing difference: a(k)-a(k-1) > a(k+1)- a(k).at n=43A071250
• Triangle T(n, k) read by rows; given by [1, 1, 1, 1, 1, 1, 1, 1, ...] DELTA [1, 0, 2, 0, 2, 0, 3, 0, 2, 0, 4, 0, 2, 0, ...] (A000005 interspersed with 0's) where DELTA is Deléham's operator defined in A084938.at n=38A085853
• a(1) = 1; for n > 1, a(n) is the smallest number that is either a divisor or a multiple, in that priority (order), of a(n-1) such that it is a distinct palindrome not included earlier.at n=39A089337
• Consider all (2n+1)-digit palindromic primes of the form 70...0M0...07 (so that M is a palindrome with <= 2n-1 digits); a(n) = smallest such M.at n=36A100956
• 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=28A111678
• Palindromes equal to the sum of a prime number with its index.at n=38A115888
• Smallest k such that p^p -+ k is prime, where p=prime(n).at n=16A157719
• Numbers that are 5-digit palindromes in at least two bases.at n=28A180454
• Number of formula representations of n using addition, multiplication, exponentiation and the constant 1.at n=10A214836
• Zeroless numbers n such that n and n - (product of digits of n) are both palindromes.at n=25A229761
• Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape Z; triangle T(n,k), n>=0, read by rows.at n=27A247713
• Sum over all partitions of n of the bitwise XOR of the parts.at n=27A306903
• Index of n-th low point in A022837.at n=10A324787