A098135 a(h) = d(h,j) = lcm( f(h,j,1) ... f(h,j,h) ), when j=3.
1, 5, 9, 455, 2618, 315, 271700, 56751695, 6930, 3708514810, 32152414840, 135135, 19749267715100, 314645828225300, 34918884, 113543477411038675, 473930651619825400, 669278610, 467655703593591713200
Offset: 0
Keywords
Examples
a(2) = 5 = lcm(5,1) a(3) = 9 = lcm(9,3,1) a(5) = 2618 = lcm(17,7,11,2,1) a(11) = 32152414840 = (41,19,35,8,29,13,23,5,17,7,1)
Formula
Given f(h, j, a) = ( [ ((a/gcd(a, h)) / gcd(j+1, (a/gcd(a, h)))) * (h(j+1)) ] - [ ((a/gcd(a, h)) / gcd(j+1, (a/gcd(a, h)))) * (ja) ]) / a then let a(h) = d(h, j) = lcm( f(h, j, 1) ... f(h, j, h) )