21834

Appears in sequences

• Numbers whose base-2 representation has exactly 14 runs.at n=5A043581
• L-th order palindromes with L > 2.at n=12A089381
• Intersection of A108027, A108028, A108029 and A108030.at n=10A108109
• Number of binary strings of length n with equal numbers of 0001 and 0111 substrings.at n=16A164160
• Number of (n+2)X(n+2) 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=1A185468
• Number of (n+2)X4 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=1A185470
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=4A185477
• Triangle generated by the recurrence T(n+1,k+1) = T(n,k+1) + n * T(n,k) + delta(n,k) with the initial values T(n,0) = 1 and T(0,k) = delta(k,0), where delta(n,k) is the Kronecker delta.at n=41A191490
• Number of partitions of n, where the difference between the number of odd parts and the number of even parts is 10.at n=48A240019