41600

Appears in sequences

• Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite ANA = Analcime Na16[ Al16Si32O96 ] . 16 H2O.at n=6A018976
• Numbers whose base-4 representation contains exactly four 0's and four 2's.at n=29A045061
• Maximization of sums of cubes of integer differences (b_[ i ]-i)^3 over permutations {b_[ i ], for i-1,2,...,n} on first n integers.at n=32A049031
• Numbers which can be written as b^2*c^2*(b^2+c^2).at n=32A063663
• Number of ways to change three non-identical letters in the word aabbccdd..., where there are n types of letters.at n=24A102860
• a(0) = 2, a(1) = 2, and for n > 1, a(n) = a(n-1) + a((a(n-1) - 1) mod n).at n=32A145465
• Coefficients of polynomials (in descending powers of x) P(n,x) := 2 + P(n-1,x)^2, where P(1,x) = x + 2.at n=39A158983
• Number of ways to place 3 nonattacking queens on an n X n toroidal board.at n=9A172518
• Numbers with prime factorization pq^2r^7.at n=14A190466
• Sum of all odd-indexed parts minus the sum of all even-indexed parts of all partitions of n, with the parts written in nondecreasing order.at n=43A194714
• Number of nX1 0..2 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other.at n=15A203594
• Number of (n+1) X 7 0..1 arrays with the number of clockwise edge increases in every 2 X 2 subblock differing from each horizontal or vertical neighbor.at n=14A205191
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=20A208376
• Erroneous version of A000136.at n=9A213429
• Recurrence a(n) = a(n-2) + n^M for M=5, starting with a(0)=0, a(1)=1.at n=8A231304
• Sum of the parts in the partitions of 4n into 4 parts with smallest part = 1.at n=19A239056
• a(n) = 26*n^2.at n=40A244633
• Number of (n+1) X (7+1) 0..2 arrays with every 2 X 2 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally.at n=7A253469
• Sum of fifth powers of the first n even numbers.at n=4A265021
• Number of nonisomorphic proper colorings of partition star graph using five colors.at n=37A297569