cp's OEIS Frontend

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.

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A268931 Square array: A(i,j) = F(A065091(i),A065091(j)), where F(a,b) is the dyadic function defined in A269158. Array is read by descending antidiagonals as A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), ...

Original entry on oeis.org

3, 3, 2, 3, 5, 0, 1, 2, 7, 2, 1, 1, 7, 0, 0, 3, 6, 3, 0, 3, 2, 3, 6, 2, 11, 7, 7, 0, 1, 1, 2, 7, 14, 3, 0, 2, 3, 6, 1, 14, 13, 15, 2, 3, 2, 3, 5, 3, 13, 1, 0, 14, 4, 0, 0, 1, 5, 5, 3, 11, 17, 10, 0, 0, 0, 0, 3, 2, 4, 10, 8, 8, 25, 13, 3, 3, 7, 2, 3, 1, 1, 15, 12, 11, 19, 26, 1, 4, 4, 0, 0, 1, 2, 6, 1, 11, 18, 19, 0, 3, 6, 0, 7, 3, 2
Offset: 1

Views

Author

Antti Karttunen, Feb 19 2016

Keywords

Examples

			The top left [1 .. 19] x [1 .. 19] section of the array:
3, 3, 3,  1,  1,  3,  3,  1,  3,  3,  1,  3,  3,  1,  3,  1,  1,  3,  1
2, 5, 2,  1,  6,  6,  1,  6,  5,  5,  2,  1,  2,  2,  6,  1,  5,  6,  5
0, 7, 7,  3,  2,  2,  1,  3,  5,  4,  1,  6,  3,  5,  5,  0,  7,  3,  7
2, 0, 0, 11,  7, 14, 13,  3, 10, 15,  1,  7,  4, 10,  5, 11,  6,  3,  2
0, 3, 7, 14, 13,  1, 11,  8, 12, 11,  2,  2,  9,  6,  5, 11,  4, 10, 15
2, 7, 3, 15,  0, 17,  8, 11, 18, 10,  2,  3, 13,  0,  8,  8, 14,  1,  2
0, 0, 2, 14, 10, 25, 19, 19, 10, 16, 26,  2,  2,  2, 18,  9, 17, 24, 24
2, 3, 4,  0, 13, 26,  0, 23,  8, 11, 26, 29,  5,  7, 22, 27, 26,  9, 27
2, 0, 0,  3,  1,  3, 27, 29, 29, 14, 22, 10, 31, 26,  5, 25, 30,  5,  9
0, 0, 3,  4,  6, 27,  3, 28, 19, 31, 22, 28,  8, 15, 10, 31,  2,  6, 14
0, 7, 4,  0,  7,  3, 27, 31, 19, 19, 37, 33, 23, 16, 37, 23, 19, 52, 48
2, 0, 7, 14, 11,  2,  3, 28,  3, 21,  0, 41, 20, 23, 34, 28, 40, 62, 62
0, 3, 0, 15,  0, 12,  1,  6, 22,  3, 54, 61, 43, 43, 29, 43, 27, 62,  0
2, 7, 2,  1, 11,  1,  1,  0, 23,  0, 53, 62,  0, 47, 28, 42, 16,  1, 62
2, 3, 0,  4,  0, 25,  3,  3, 16, 31,  0,  3, 60, 57, 53, 29, 26, 43, 38
2, 0, 3,  0,  2, 25, 26,  8,  0,  4, 54, 53,  0,  1, 44, 59, 31, 37,  2
0, 0, 2, 15,  9, 31,  0, 15,  3, 31, 54,  1, 50, 61, 47, 38, 61, 35, 35
0, 7, 0,  0, 11,  0, 27, 10,  4,  5, 53, 63, 61,  2, 42, 38, 34, 67, 67
2, 0, 0,  1, 10,  3, 27, 28, 12,  9, 53, 63,  3, 57, 35,  1, 38,  0, 71
		

Crossrefs

Transpose: A268932.
Cf. A065091 (the main diagonal).

Programs

Formula

A(i,j) = F(A065091(i),A065091(j)) = A269158(A065091(i),A006254(j)), function F defined as in A269158.
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