4,12,86,?,15632,?a2 = 12 = 2^3 + 4a3 = 86 = 3^4 + 5a4 = = 4^5 + 6 = 1030a5 = 15632 = 5^6 + 7a6 = = 6^7 + 8 = 279944
1030,279944
52104
