26262

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 18.at n=17A031696
• Number of points of L1 norm 3 in cubic lattice Z^n.at n=27A035597
• Coordination sequence for 27-dimensional cubic lattice.at n=3A035722
• Numbers whose base-4 representation contains exactly four 1's and four 2's.at n=22A045109
• Palindromic and divisible by 9.at n=40A045644
• Palindromic even lucky numbers.at n=36A045960
• Numbers with at least 2 distinct digits and whose "rotations" (including the number itself) are multiples of these digits; repeated digits allowed but digit 0 not allowed.at n=22A066484
• Second binomial transform of binomial(n+5, 5).at n=6A081901
• Palindromes in A082939.at n=21A082940
• Palindromes k such that 3k + 1 is also a palindrome.at n=29A083829
• Palindromes with more than 3 digits in which the absolute difference of a pair of successive digits is identical.at n=33A085109
• Indices of primes in sequence defined by A(0) = 61, A(n) = 10*A(n-1) + 31 for n > 0.at n=12A101527
• Palindromes sandwiched between twin primes.at n=9A113838
• Undulating Harshad numbers: numbers divisible by the sum of their own digits with decimal expansions in an abab...ab pattern.at n=47A129120
• Numbers k such that k and k^2 use only the digits 2, 4, 6, 8 and 9.at n=15A137104
• Numbers k such that both k and k^2/2 are averages of twin prime pairs.at n=24A152787
• a(n) = 1458*n + 18.at n=17A157505
• 324n^2 + 2n.at n=8A158271
• a(n) = 324*n^2 + 18.at n=9A158590
• Smallest palindrome which requires at least n iterations of Reverse and Add to reach a palindrome.at n=30A222533