23694

Appears in sequences

• a(n) = 49*n^2 - n.at n=21A157923
• a(n) = 196*n^2 - 2*n.at n=10A158224
• a(n) = 484*n^2 - 22.at n=6A158627
• A transform of the large Schroeder numbers A006318.at n=7A174808
• a(n) is the sum of the squares of the sizes of the conjugacy classes in the symmetric group A_n.at n=5A206820
• Number of partitions of n into colored blocks of equal parts, such that all colors from a set of size two are used and the colors are introduced in increasing order.at n=24A327285
• Sum of Fibonacci and tribonacci numbers: a(n) = A000073(n) + A000045(n).at n=19A338192
• Products of four distinct primes between sphenic numbers (products of 3 distinct primes).at n=15A351382