22122

Appears in sequences

• Fibonacci numbers written in base 3.at n=13A004686
• Number of partitions of n into at most 8 parts.at n=47A008637
• Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 2,2,1.at n=4A037567
• k th digit of a(n) = number of different digits within 2 places of k (not including k).at n=14A039987
• k th digit of a(n) is the number of different digits within 3 of k (not including k).at n=13A039989
• k th digit of a(n) is the number of different digits within 4 of k (not including k).at n=13A039990
• Numbers having four 2's in base 10.at n=5A043500
• Numbers whose base-4 representation contains exactly four 1's and four 2's.at n=1A045109
• Palindromes that are divisible by 6.at n=36A045641
• Palindromic and divisible by 9.at n=36A045644
• Palindromic untouchable numbers.at n=28A048187
• a(n) = smallest palindrome > a(n-1) such that a(1)*a(2)*...*a(n) - 1 is a prime.at n=29A051954
• Palindromes which are the concatenation of 3 or more terms of an arithmetic sequence with nonzero difference.at n=0A062564
• Numbers that are palindromic in base 2 as well as in base 10 (initial zeros may be prepended).at n=44A069024
• Palindromes with successive increasing difference: a(k)-a(k-1) > a(k+1)- a(k).at n=41A071250
• a(n) = A078279(n)/22.at n=2A078280
• LookAndSay(n) is palindromic.at n=11A079676
• Numbers n which in decimal have the form imj, where m is the middle digit, with property that j is the reversal of i, and i = m*j.at n=10A082945
• Smallest palindromic multiple of n containing the digit string of a(n-1); or 0 if no such number exists.at n=2A083962
• Triangle read by rows giving coefficients of polynomials arising in successive differences of central binomial numbers.at n=19A094796