29954

Appears in sequences

• Numbers k such that k*2^k - k - 1 is prime.at n=25A046843
• Number of (n+2) X (4+2) 0..3 arrays with every 3 X 3 subblock row and column sum 1 3 6 or 8 and every diagonal and antidiagonal sum not 1 3 6 or 8.at n=6A252011
• Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum 1 3 6 or 8 and every diagonal and antidiagonal sum not 1 3 6 or 8.at n=3A252014
• Number of integer partitions of n whose second differences sum to 0, meaning either there is only one part, or the first two parts have the same difference as the last two parts.at n=50A360683
• E.g.f. satisfies A(x) = -log(1 - x/(1 - A(x)))/(1 - A(x)).at n=5A371327