69990

Appears in sequences

• Revert transform of (1 + x - 4x^2 - x^3)/(1 + 2x - 2x^2 - 2x^3).at n=10A049141
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,29.at n=9A064251
• Smallest multiple of n whose sum of digits is greater than n.at n=29A269332
• a(n) = 68*2^n + 358.at n=10A305267