147969

Appears in sequences

• Middle term of a triple of consecutive numbers which are sums of two squares.at n=16A096129
• Lexicographically earliest sequence of distinct natural numbers such that, for any number n in the sequence, the positions of the 1's in the binary representation of n are in the sequence, whereas the positions of the 0's are not.at n=16A229072
• a(n) = Sum_{d|n} (n/d) * 4^(n-d).at n=7A359204