A057310 Duplicate of A008084.
1, 4, 9, 19, 35, 52, 72, 100, 131, 163, 201, 244, 290, 340, 393, 451, 515, 580, 648, 724, 803, 883, 969, 1060, 1154, 1252, 1353, 1459, 1571, 1684, 1800, 1924, 2051, 2179, 2313, 2452, 2594, 2740, 2889, 3043, 3203, 3364, 3528, 3700, 3875, 4051, 4233
Offset: 0
Keywords
Links
- R. W. Grosse-Kunstleve, Coordination Sequences and Encyclopedia of Integer Sequences
- International Zeolite Association, Database of Zeolite Structures
Formula
G.f.: (1+x)^3*(1-x+3*x^2-x^3+x^4) / ((1-x)^3*(1+x^2)*(1+x+x^2)). - Colin Barker, Dec 19 2015
Comments