196830

Appears in sequences

• a(n) = 10*3^n.at n=9A005052
• Numbers of form 3^i*10^j, with i, j >= 0.at n=37A025616
• a(n) = (n-1)*3^(n-2), n > 0.at n=10A027471
• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*9^j.at n=19A038263
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*6^j.at n=16A038296
• Diagonal of table A062104.at n=12A062107
• Riordan array (1, 3+x).at n=76A099097
• Denominators of ternary BBP-type series for log(5).at n=7A164985
• Triangle read by rows: T(n,k) is the number of 2-compositions of n having k columns with only nonzero entries (0<=k<=floor(n/2)).at n=37A181307
• Row sums of A211230.at n=18A211231
• Triangle read by rows: minimum inversion terminator in rooted labeled trees.at n=31A217877
• Table read by antidiagonals: T(n,k) is the number of idempotent n X n 0..k matrices of rank 1.at n=54A224524
• a(n) = 2*n*3^(2*n-1).at n=5A230540
• a(n) = 10*n^3.at n=27A244729
• Sum of the degrees of asymmetry of all ternary words of length n.at n=10A274499
• Triangle T(n,k) = 3*T(n-1,k) + T(n-2,k-1) for k = 0..floor(n/2), with T(0,0) = 1 and T(n,k) = 0 for n < 0 or k < 0, read by rows.at n=37A304249
• Triangle T(n,k) = 3*T(n-1,k) + T(n-3,k-1) for k = 0..floor(n/3) with T(0,0) = 1 and T(n,k) = 0 for n or k < 0, read by rows.at n=31A317497
• Triangle T(n,k) = 3*T(n-1,k) + T(n-4,k-1) for k = 0..floor(n/4), with T(0,0) = 1 and T(n,k) = 0 for n or k < 0, read by rows.at n=29A318773
• Numbers k that set records in A355432.at n=35A360589
• T(n, k) is the total number of non-symmetric peaks in all partitions of n with exactly k blocks, n >= 4, 3 <= k <= n-1.at n=45A370373