51030

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*10^j.at n=29A038228
• Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*3^j.at n=34A038305
• a(n) = 2 * 3^(n-2)*n*(1+2*n).at n=7A062189
• Numbers m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,39.at n=13A064256
• (Sum of digits of n)^5 - (sum of digits^5 of n).at n=36A069965
• Triangle T(n, k) read by rows; given by [1, 2, 3, 4, 5, 6, ..] DELTA [1, 4, 9, 16, 25, 36, ...] where DELTA is the operator defined in A084938.at n=17A086872
• Triangle read by rows giving coefficients of polynomials arising in successive differences of central binomial numbers.at n=29A094796
• Triangle read by rows in which row n gives coefficients of polynomial R_n(y) that satisfies R_n(1/3) = 3^n, where R_n(y) forms the initial (n+1) terms of g.f. A057083(y)^(n+1).at n=26A097186
• Triangle read by rows: T(n,k) is the number of down-up permutations on [n] with k left-to-right maxima.at n=33A098906
• Diagonal sums of a Krawtchouk triangle.at n=20A099038
• Expansion of (1-12*x)^(-3/2).at n=4A115903
• Triangle T(n, k) = 1 if k = 0 or k = n, otherwise n^5 - k^5 - (n-k)^5, read by rows.at n=48A157634
• Triangle T(n, k) = 1 if k = 0 or k = n, otherwise n^5 - k^5 - (n-k)^5, read by rows.at n=51A157634
• Triangle of z Transform coefficients from General Pascal [1,10,1} A142459 polynomials multiplied by factor 3^Floor[(2*k - 1)/3].at n=20A167787
• Number of ways to place 2 nonattacking knights on an n X n toroidal board.at n=17A172529
• Number of ways to place 2 nonattacking kings on an n X n toroidal board.at n=17A179403
• Numbers with prime factorization pqrs^6.at n=32A190292
• Denominators of coefficients in Taylor series expansion of arccosh(exp(x)-sin(x)).at n=8A202359
• (n-1)-st elementary symmetric function of the first n terms of the periodic sequence (1,1,1,3,1,1,1,3,...).at n=27A203235
• Number of maximal squarefree words of length n over the alphabet {0,1,2}.at n=43A282212