1146617856

Appears in sequences

• Three people (P1, P2, P3) are in a circle and are saying Hello to each other. They start with P2 saying "Hello, Hello". Thereafter Pn says "Hello" for n times the total number of Hello's so far.at n=19A076507
• Expansion of 3*(1+2*x+6 x^2)/(1-24*x^3).at n=19A076510
• Product_{j=1..n} Product_{k=1..n} lcm(j,k).at n=4A090494
• Largest order of a solvable subgroup of the symmetric group S_n.at n=21A099732
• An analog of Pascal's triangle based on A129454. T(n, k) = A129454(n+1)/(A129454(n-k+1)*A129454(k+1)).at n=22A129455
• An analog of Pascal's triangle based on A129454. T(n, k) = A129454(n+1)/(A129454(n-k+1)*A129454(k+1)).at n=26A129455
• a(n) = floor(sqrt(n)) * a(n-1), starting with 1.at n=21A195458
• (n-1)-st elementary symmetric function of the first n terms of the periodic sequence (3,4,1,2,3,4,1,2,...).at n=22A203165
• Number of n X 1 arrays of permutations of 0..n*1-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 7.at n=26A264791
• Numbers k such that k^3 is the sum of two positive 7th powers.at n=11A291829