21354

Appears in sequences

• Positive numbers k such that k and 2*k are anagrams in base 6 (written in base 6).at n=25A023064
• Number of binary strings of length n with no substrings equal to 0000 0011 or 1100.at n=14A164430
• Permutations of 12345: Numbers having each of the decimal digits 1,...,5 exactly once, and no other digit.at n=25A178475
• Fixed points of the function A260529(n) = concatenation of the positions of digits 9, 8,..., 0 in the decimal representation of n, using 1 for the rightmost digit etc., skipping digits which don't occur.at n=21A260275
• Numbers n which divide A260521(n), the concatenation of the positions of the digits 9, 8, ..., 0 in the decimal representation of n, where positions are counted from the right, and 0 if a given digit does not occur.at n=44A260386
• Decimal representation of permutations of lengths 1, 2, 3, ...at n=43A306428
• Number of compositions of n with strictly increasing run-lengths.at n=46A333192