144288

Appears in sequences

• Numbers n such that 245*2^n-1 is prime.at n=17A050881
• 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=15A064251
• a(n) = number of n-lettered words in the alphabet {1, 2, 3, 4} with as many occurrences of the substring (consecutive subword) [1, 2] as of [2, 1].at n=9A211307
• The Wiener index of the cyclic phenylene with n hexagons (n>=3).at n=21A224456