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 A362979 #34 Jan 19 2024 08:13:57
%S A362979 7,11,23,13,29,31,19,43,47,311
%N A362979 Square array, read by descending antidiagonals: row n lists the primes whose base-2 representation has exactly n ones, starting from n=3.
%e A362979 Corner:
%e A362979 n=3: 7 11 13 19 37 41 67 73 97
%e A362979 n=4: 23 29 43 53 71 83 89 101 113
%e A362979 n=5: 31 47 59 61 79 103 107 109 151
%e A362979 n=6: 311 317 347 349 359 373 461 467 571
%e A362979 The first four primes in row n=3 have these base-2 representations, respectively: 111, 1011, 1101, 10011.
%t A362979 t[n_] := Count[IntegerDigits[Prime[n], 2], 1] (* A014499 *)
%t A362979 u = Table[t[n], {n, 1, 200}];
%t A362979 p[n_] := Flatten[Position[u, n]]
%t A362979 w = TableForm[Table[Prime[p[n]], {n, 3, 16}]]
%Y A362979 Cf. A000040, A014499.
%Y A362979 Cf. A019434 (row 2), A061712 (column 1), A081091 (row 3), A095077 (row 4).
%K A362979 nonn,base,tabl,more
%O A362979 3,1
%A A362979 _Clark Kimberling_, May 11 2023
%E A362979 New offset and edited by _Michel Marcus_, Jan 19 2024