38475

Appears in sequences

• a(n) = 225*(n-1)*(n-2)/2.at n=17A027470
• Number of permutations satisfying -k <= p(i) - i <= r and p(i) - i not in I, i=1..n, with k=1, r=5, I={2,3}.at n=20A079960
• Number of partitions of n in which the sequence of frequencies of the summands is nondecreasing.at n=46A100883
• Triangle T(n, k, q) = c(n-1, q)*c(n, q)/(c(k-1, q)^2*c(n-k, q)*c(n-k+1, q)*f(k, q)), where c(n, q) = Product_{j=1..n} f(j, q), f(n, q) = q*(f(n-1, q) + f(n-2, q)), f(0, q) = 0, f(1, q) = 1, and q = 3, read by rows.at n=12A172376
• a(n) is the sum of a sequence of multiples of the n-th prime such that it contains each of the digits from 0 to 9 exactly once and with the least sum possible, or 0 if there is no satisfying sequence.at n=2A274328
• The odd edge of a primitive 3-simplex (0, b=A031173, c=A031174, d=A031175).at n=41A298047