cp's OEIS Frontend

A284270 Square array A(r,c) = A048720(A065621(r), c) mod r, 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 A284270 #13 Apr 10 2017 12:28:04
%S A284270 0,0,0,0,0,1,0,0,2,0,0,0,0,0,3,0,0,1,0,1,2,0,0,0,0,3,4,4,0,0,0,0,2,0,
%T A284270 1,0,0,0,0,0,2,2,1,0,7,0,0,2,0,1,0,2,0,5,6,0,0,0,0,0,0,4,0,7,2,9,0,0,
%U A284270 0,0,4,0,2,0,1,6,7,4,0,0,1,0,1,4,0,0,8,4,0,8,8,0,0,0,0,4,0,4,0,5,4,3,0,3,8,0,0,2,0,2,0,6,0,7,2,0,4,11,2,4
%N A284270 Square array A(r,c) = A048720(A065621(r), c) mod r, 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 A284270 Antti Karttunen, <a href="/A284270/b284270.txt">Table of n, a(n) for n = 1..10440; the first 144 antidiagonals of the array</a>
%H A284270 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a>
%F A284270 A(r,c) = A277320(r,c) mod r = A048720(A065621(r), c) mod r.
%e A284270 The top left 17 x 19 corner of the array:
%e A284270    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0
%e A284270    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0
%e A284270    1,  2,  0,  1,  0,  0,  0,  2,  0,  0,  1,  0,  2,  0,  0,  1,  2
%e A284270    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0
%e A284270    3,  1,  3,  2,  2,  1,  0,  4,  1,  4,  2,  2,  1,  0,  0,  3,  1
%e A284270    2,  4,  0,  2,  0,  0,  0,  4,  0,  0,  2,  0,  4,  0,  0,  2,  4
%e A284270    4,  1,  1,  2,  4,  2,  0,  4,  6,  1,  6,  4,  1,  0,  0,  1,  5
%e A284270    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0
%e A284270    7,  5,  7,  1,  8,  5,  7,  2,  2,  7,  2,  1,  1,  5,  0,  4,  6
%e A284270    6,  2,  6,  4,  4,  2,  0,  8,  2,  8,  4,  4,  2,  0,  0,  6,  2
%e A284270    9,  7,  0,  3,  0,  0,  5,  6,  0,  0,  8,  0,  1, 10,  0,  1,  0
%e A284270    4,  8,  0,  4,  0,  0,  0,  8,  0,  0,  4,  0,  8,  0,  0,  4,  8
%e A284270    8,  3, 11,  6,  0,  9,  3, 12,  7,  0,  8,  5, 12,  6,  0, 11,  0
%e A284270    8,  2,  2,  4,  8,  4,  0,  8, 12,  2, 12,  8,  2,  0,  0,  2, 10
%e A284270    4,  8,  8,  1,  5,  1,  1,  2,  4, 10,  8,  2,  4,  2,  0,  4,  6
%e A284270    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0
%e A284270   15, 13, 15,  9,  7, 13, 15,  1, 16, 14, 16,  9,  7, 13, 15,  2,  2
%e A284270   14, 10, 14,  2, 16, 10, 14,  4,  4, 14,  4,  2,  2, 10,  0,  8, 12
%e A284270   17, 15, 13, 11,  7,  7,  0,  3,  0, 14,  6, 14, 16,  0, 13,  6,  3
%o A284270 (Scheme)
%o A284270 (define (A284270 n) (A284270bi (A002260 n) (A004736 n)))
%o A284270 (define (A284270bi row col) (modulo (A277320bi row col) row)) ;; For A277320bi, see in A277320.
%Y A284270 Cf. A048720, A065621, A115872, A277320, A284269 (transpose), A284273 (main diagonal), A284552 (column 1).
%Y A284270 Row 3: A284557.
%K A284270 nonn,tabl,base
%O A284270 1,9
%A A284270 _Antti Karttunen_, Apr 10 2017