277830

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*9^j.at n=17A038275
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*7^j.at n=18A038297
• Triangle read by rows: T(n,k) is the number of ternary trees with n edges and having k vertices of outdegree 3 (n >= 0, k >= 0).at n=19A120983
• Number of bases to which terms of A141768 are strong pseudoprimes.at n=33A195328
• Number of (n+2) X (1+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.at n=11A259955