47781

Appears in sequences

• a(n) = (n - 1/3)*2^n - n/2 + 1/4 + (-1)^n/12.at n=11A127982
• Number of zero-sum -1..1 arrays of n elements with first through third differences also in -1..1.at n=32A202504
• Odd composites k such that sigma(k) has the same powerful part as k, where sigma is the sum of divisors function.at n=38A386425
• Number of integer partitions of n without choosable initial intervals.at n=42A387118