A276619 Transpose of square array A276620.

4, 8, 4, 10, 10, 4, 20, 12, 8, 4, 16, 20, 12, 10, 4, 24, 12, 22, 12, 8, 4, 38, 26, 16, 24, 10, 10, 4, 20, 40, 30, 14, 24, 10, 8, 4, 34, 18, 38, 20, 14, 22, 14, 10, 4, 40, 22, 14, 34, 32, 12, 16, 10, 8, 4, 36, 68, 34, 22, 38, 26, 20, 22, 10, 10, 4, 22, 36, 46, 26, 14, 40, 18, 14, 28, 12, 8, 4, 34, 14, 28, 74, 30, 12, 48, 30, 8, 20, 12, 10, 4

Offset: 1

Author

Antti Karttunen, Sep 13 2016

Keywords

• sign
• tabl

Comments

See A276620.

The first negative term occurs as a(472) = A(7,25) = A276609(8,25) - A276609(7,25) = 248 - 258 = -10.

Examples

			The top left 18 x 18 corner of the array:
  4,  8, 10, 20, 16, 24, 38, 20, 34, 40, 36, 22, 34, 52, 52, 42, 44, 48
  4, 10, 12, 20, 12, 26, 40, 18, 22, 68, 36, 14, 32, 44, 74, 46, 38, 54
  4,  8, 12, 22, 16, 30, 38, 14, 34, 46, 28, 14, 46, 40, 70, 58, 16, 54
  4, 10, 12, 24, 14, 20, 34, 22, 26, 74, 32, 10, 32, 52, 52, 64, 30, 62
  4,  8, 10, 24, 14, 32, 38, 14, 30, 52, 30, 46, 16, 40, 66, 38, 64, 24
  4, 10, 10, 22, 12, 26, 40, 12, 40, 48, 28, 16, 46, 56, 68, 38, 22, 62
  4,  8, 14, 16, 20, 18, 48, 20, 20, 70, 18, 24, 30, 58, 56, 62, 28, 66
  4, 10, 10, 22, 14, 30, 34, 22, 30, 40, 58,  2, 30, 60, 52, 52, 48, 46
  4,  8, 10, 28,  8, 28, 32, 20, 30, 64, 28, 32, 30, 28, 80, 44, 34, 48
  4, 10, 12, 20, 22, 22, 40, 16, 32, 66, 20, 16, 54, 24, 64, 62, 32, 52
  4,  8, 12, 22, 12, 28, 40, 18, 28, 46, 38, 24, 34, 64, 42, 52, 46, 54
  4, 10, 12, 20, 12, 30, 36, 12, 34, 58, 26, 20, 26, 52, 90, 28, 26, 62
  4,  8, 10, 20, 18, 28, 40, 20, 26, 58, 30, 18, 34, 54, 54, 62, 38, 52
  4, 10, 10, 26, 12, 20, 44, 10, 40, 48, 50, 12, 26, 66, 42, 52, 36, 42
  4,  8, 14, 20, 12, 30, 36, 24, 26, 58, 30, 28, 30, 30, 78, 50, 48, 30
  4, 10, 10, 22, 18, 24, 40, 18, 26, 62, 28, 12, 38, 54, 58, 50, 44, 48
  4,  8, 10, 24, 14, 28, 36, 18, 30, 58, 22, 30, 40, 30, 72, 42, 26, 76
  4, 10, 12, 22, 14, 26, 32, 18, 32, 52, 44, 20, 18, 66, 68, 52, 34, 40
		

Links

• Antti Karttunen, Table of n, a(n) for n = 1..5050; the first 100 antidiagonals of array
• Index entries for sequences generated by sieves

Crossrefs

Transpose: A276620.

Cf. A276609, A276610.

Programs

Scheme

(define (A276619 n) (A276620bi (A004736 n) (A002260 n))) ;; Code for A276620bi given in A276620.