cp's OEIS Frontend

A277320 Square array A(r,c) = A048720(A065621(r), c), read by descending antidiagonals as A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), etc.

%I A277320 #14 Nov 05 2016 07:24:06
%S A277320 1,2,2,3,4,7,4,6,14,4,5,8,9,8,13,6,10,28,12,26,14,7,12,27,16,23,28,11,
%T A277320 8,14,18,20,52,18,22,8,9,16,21,24,57,56,29,16,25,10,18,56,28,46,54,44,
%U A277320 24,50,26,11,20,63,32,35,36,39,32,43,52,31,12,22,54,36,104,42,58,40,100,46,62,28,13,24,49,40,101,112,49,48,125,104,33,56,21
%N A277320 Square array A(r,c) = A048720(A065621(r), c), read by descending antidiagonals as A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), etc.
%H A277320 Antti Karttunen, <a href="/A277320/b277320.txt">Table of n, a(n) for n = 1..10440; the first 144 antidiagonals of array</a>
%H A277320 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a>
%H A277320 <a href="/index/Ge#GF2X">Index entries for sequences operating on polynomials in ring GF(2)[X]</a>
%F A277320 A(r,c) = A048720(A065621(r), c).
%e A277320 The top left corner of the array:
%e A277320    1,   2,   3,   4,   5,   6,   7,   8,   9,  10,  11,  12
%e A277320    2,   4,   6,   8,  10,  12,  14,  16,  18,  20,  22,  24
%e A277320    7,  14,   9,  28,  27,  18,  21,  56,  63,  54,  49,  36
%e A277320    4,   8,  12,  16,  20,  24,  28,  32,  36,  40,  44,  48
%e A277320   13,  26,  23,  52,  57,  46,  35, 104, 101, 114, 127,  92
%e A277320   14,  28,  18,  56,  54,  36,  42, 112, 126, 108,  98,  72
%e A277320   11,  22,  29,  44,  39,  58,  49,  88,  83,  78,  69, 116
%e A277320    8,  16,  24,  32,  40,  48,  56,  64,  72,  80,  88,  96
%e A277320   25,  50,  43, 100, 125,  86,  79, 200, 209, 250, 227, 172
%e A277320   26,  52,  46, 104, 114,  92,  70, 208, 202, 228, 254, 184
%e A277320   31,  62,  33, 124,  99,  66,  93, 248, 231, 198, 217, 132
%e A277320   28,  56,  36, 112, 108,  72,  84, 224, 252, 216, 196, 144
%e A277320   21,  42,  63,  84,  65, 126, 107, 168, 189, 130, 151, 252
%e A277320   22,  44,  58,  88,  78, 116,  98, 176, 166, 156, 138, 232
%e A277320   19,  38,  53,  76,  95, 106, 121, 152, 139, 190, 173, 212
%e A277320   16,  32,  48,  64,  80,  96, 112, 128, 144, 160, 176, 192
%e A277320   49,  98,  83, 196, 245, 166, 151, 392, 441, 490, 475, 332
%e A277320   50, 100,  86, 200, 250, 172, 158, 400, 418, 500, 454, 344
%e A277320   55, 110,  89, 220, 235, 178, 133, 440, 399, 470, 481, 356
%o A277320 (Scheme)
%o A277320 (define (A277320 n) (A277320bi (A002260 n) (A004736 n)))
%o A277320 (define (A277320bi row col) (A048720bi (A065621 row) col))
%Y A277320 Transpose: A277199.
%Y A277320 Main diagonal: A277699.
%Y A277320 Row 1: A000027, Row 3: A048727.
%Y A277320 Column 1: A065621, Column 3: A277823, Column 5: A277825.
%Y A277320 Cf. A277820 (array obtained by selecting only the columns with an index A001317(k), k=0..).
%Y A277320 Cf. A048720, A115872.
%K A277320 nonn,base,tabl
%O A277320 1,2
%A A277320 _Antti Karttunen_, Nov 01 2016