66752

Appears in sequences

• Number of even permutations of length n with no fixed points.at n=9A003221
• Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 9 (most significant digit on right).at n=7A061962
• Integers that are Rhonda numbers to base 12.at n=31A100971
• Triangle read by rows: T(n,k) is the number of even permutations (of an n-set) with exactly k fixed points.at n=45A145224
• Number of Ramanujan primes R_k such that 2^(n-1) < R_k <= 2^n.at n=22A190501
• Number of n-permutations having all cycles of odd length and at most one fixed point.at n=9A214849
• Number of derangements on n elements with an odd number of cycles.at n=9A216779
• Number of (3+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 2 3 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 2 3 6 or 7.at n=13A252535
• Triangle read by rows: T(n,k) is the number of permutations in symmetric group S_n with (n-k) fixed points and an odd number of non-fixed point cycles. Equivalent to the number of cycles of n items with cycle type defined by non-unity partitions of k <= n that contain an odd number of parts.at n=54A373418
• Triangle T(n, k) for the number of permutations of symmetric group S_n with an odd number of non-fixed point cycles, without k <= n particular fixed points.at n=54A374420