2016 – triangular number, number of 5cubes in a 9cube, Erdős–Nicolas number, 2 112 5. 2017 – Mertens function zero. (2011, 2017) is a sexy prime pair. 2019 – smallest number that can be represented as the sum of 3 prime squares 6 different ways 2019 = 7 2 + 11 2 + 43 2 = 7 2 + 17 2 + 41 2 = 13 2 + 13 2 + 41 2 = 11 2 + 23 2 + 37 2 ...Forestville is a suburb of Northern Sydney, in the state of New South Wales, Australia.Forestville is 12 kilometres north of the Sydney central business district in the local government area of Northern Beaches Council.Forestville is part of the Forest District
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