36963
domain: N
Appears in sequences
- Numbers m such that m divides 10^m - 1.at n=20A014950
- Numbers k such that k | 11^k + 1.at n=25A015960
- Palindromes expressible as the sum of 3 consecutive palindromes.at n=30A046498
- Numbers whose square is expressible as the difference of positive cubes in more than one way.at n=0A051393
- Final terms of rows of A077529.at n=36A077530
- a(n) is the smallest k such that number of non-unitary prime divisors of central binomial coefficient, A001405(k) = C(k, floor(k/2)) equals n.at n=27A081394
- a(n) is the odd-length palindrome whose digits up to the center are those of n and whose center digit is equal to the digital root of the product of the factorial of n and the reverse of n.at n=35A082941
- a(1) = 1; a palindrome is included in the sequence if it has a prime signature that is different from all previous terms.at n=30A083433
- Palindromes with distinct prime signatures that occur naturally. Smallest palindrome with a prime signature of A025487(n), or 0 if no such number exists.at n=14A083435
- 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=49A089337
- Numbers n such that (n+j) mod (2+j) = 1 for j from 0 to 6 and (n+7) mod 9 <> 1.at n=29A096025
- a(n) is the least k such that k and k+n are adjacent powerful numbers.at n=28A103954
- Number of fusenes with 23 hexagons, C_(2v) symmetry and containing n carbon atoms.at n=15A122097
- Numbers k such that k and k^2 use only the digits 1, 2, 3, 6 and 9.at n=31A136981
- a(n) is the smallest k > 0 such that the first n multiples of k have the same sum of digits, but (n+1)k has a different one. a(n)=0 if no such k exists.at n=31A238088
- a(n) = 27*n^2.at n=37A244634
- Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 5 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 5 6 or 7.at n=7A252145
- a(n) = smallest palindrome k > n such that k/n is a square; a(n) = 0 if no solution exists.at n=26A260726
- The 21 palindromic divisors of the palindrome 12345678987654321.at n=7A261245
- Numbers of the form (10^c-1)*the product any two (not necessarily distinct) terms of A074992.at n=8A284691