A276943 - OEIS

A276943

Square array A(row,col) read by antidiagonals: A(1,col) = A276155(col), and for row > 1, A(row,col) = A276154(A(row-1,col)); Dispersion of primorial base left shift A276154 (array transposed).

1, 3, 2, 4, 8, 6, 5, 12, 36, 30, 7, 14, 60, 240, 210, 9, 32, 66, 420, 2520, 2310, 10, 38, 216, 450, 4620, 32340, 30030, 11, 42, 246, 2340, 4830, 60060, 540540, 510510, 13, 44, 270, 2550, 30240, 62370, 1021020, 10210200, 9699690, 15, 62, 276, 2730, 32550, 512820, 1051050, 19399380, 232792560, 223092870

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OFFSET

1,2

COMMENTS

The array A(row,col) is read by descending antidiagonals: A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), etc.

Entries on row n are all multiples of A002110(n-1).

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..630; the first 35 antidiagonals of array

Index entries for sequences that are permutations of the natural numbers

Index entries for sequences related to primorial base

FORMULA

A(1,col) = A276155(col); for row > 1, A(row,col) = A276154(A(row-1,col)).