A276941 - OEIS

A276941

Square array A(row,col): A(1,col) = A276937(col), and for row > 1, A(row,col) = A003961(A(row-1,col)), read by descending antidiagonals: A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), etc.

2, 6, 3, 9, 15, 5, 10, 25, 35, 7, 14, 21, 49, 77, 11, 18, 33, 55, 121, 143, 13, 22, 75, 65, 91, 169, 221, 17, 26, 39, 245, 119, 187, 289, 323, 19, 30, 51, 85, 847, 209, 247, 361, 437, 23, 34, 105, 95, 133, 1859, 299, 391, 529, 667, 29, 38, 57, 385, 161, 253, 3757, 493, 551, 841, 899, 31, 42, 69, 115, 1001, 319, 377, 6137, 589, 713, 961, 1147, 37

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OFFSET

2,1

COMMENTS

The starting offset is 2 because 1 is not included in the array proper. With it the terms are a permutation of A276078.

LINKS

Antti Karttunen, Table of n, a(n) for n = 2..1276; the first 50 antidiagonals of array

FORMULA

A(1,col) = A276937(col), and for row > 1, A(row,col) = A003961(A(row-1,col)).

EXAMPLE

The top left corner of the array:

2, 6, 9, 10, 14, 18, 22, 26, 30, 34, 38, 42