32907

Appears in sequences

• a(n) = Sum_{ k, k|n } 2^(k-1).at n=15A034729
• Numbers n such that n | 12^n + 11^n + 10^n + 9^n + 8^n + 7^n + 6^n + 5^n + 4^n.at n=45A057285
• Partitions encoded by interleaving bits in parts. The partition [P1+P2+P3+...] with P1>=P2>=P3>=... is encoded in binary by recursively interleaving the bits of P1 with the (recursively interleaved bits of P2 with the (recursively...)).at n=18A059902
• Permutation of natural numbers induced by reranking plane binary trees given in the standard lexicographic order (A014486) with an "arithmetic global ranking algorithm", using A054238 as the pairing function N X N -> N.at n=23A072634
• a(0) = 0, a(n) = Sum_{i=0..n-1} 2^((2^i)-1).at n=5A072639
• Recursive binary interleaving code for rooted plane binary trees, as ordered by A014486.at n=23A082856
• Multiplies by 2 and shifts right under the XOR BINOMIAL transform (A099901).at n=15A099902
• Stern-Jacobsthal numbers.at n=30A101624
• Numbers k such that k and 2*k, taken together are pandigital.at n=30A115922
• Number of compositions of n which are prime when concatenated and read as a decimal string.at n=18A116381
• a(2n) = 2^(2n), a(2n+1) = 2^(2n+1) + a(n).at n=15A127804
• Monotonic ordering of set S generated by these rules: if x and y are in S then 2xy-x-y is in S, and 3 is in S.at n=23A192525
• Number of arrays of median of three adjacent elements of some length n+2 0..4 array, with no adjacent equal elements in the latter.at n=7A229008
• As a binary numeral, the bit 2^(m-1) of a(n) is 1 iff m is a proper divisor of n.at n=31A247146
• Indices in A261283 where records occur.at n=31A253317
• Number of partitions p of n such that min(p) <= (number of parts of p) <= max(p).at n=42A325343
• The positions of ones in the reversed binary expansion of n have integer geometric mean.at n=37A326673
• BII-numbers of maximal uniform set-systems covering an initial interval of positive integers.at n=10A327081
• List of free polyominoes in arbitrary dimension given by an integer code (see comments), ordered first by the number of cells, then by the value of the code.at n=35A365142
• Numbers whose product of binary indices is a prime power > 1.at n=44A371290