This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A257177 #4 Apr 20 2015 13:24:38
%S A257177 0,0,0,1,1,2,2,2,3,3,2,3,3,3,4,4,4,4,4,4,6,5,5,6,6,6,7,5,7,5,7,5,10,6,
%T A257177 8,8,9,6,11,5,11,7,11,7,13,7,13,9,13,9,15,7,16,8,15,8,17,7,16,10,17,9,
%U A257177 20,8,21,11,20,8,21,7,22,11,22,11,23,10,28,12,24,11
%N A257177 Number of partitions of n into 2 or 3 primes.
%t A257177 f[n_] := Length@ IntegerPartitions[n, {2, 3}, Prime@ Range@ PrimePi@ n]; Array[f, 80]
%Y A257177 Cf. A002375, A068307, A083338, A000607.
%K A257177 nonn,easy
%O A257177 1,6
%A A257177 _Robert G. Wilson v_, Apr 17 2015