A034131 Decimal part of cube root of a(n) starts with 5: first term of runs.
4, 16, 43, 92, 167, 275, 422, 615, 858, 1158, 1521, 1954, 2461, 3049, 3724, 4493, 5360, 6332, 7415, 8616, 9939, 11391, 12978, 14707, 16582, 18610, 20797, 23150, 25673, 28373, 31256, 34329, 37596, 41064, 44739, 48628, 52735, 57067, 61630
Offset: 1
Crossrefs
Cf. A034121.
Formula
a(n) = ceiling((n+1/2)^3). - Benoit Cloitre, Apr 16 2003
(1/8) {8n^3 + 36n^2 + 54n + 31 - (-1)^n - 2(-1)^[(n-1)/2] }. - Ralf Stephan, Jun 10 2005