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

1,1

Comments

See A276620.

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

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

Example

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

Prog

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

Crossrefs

Transpose: A276620.

Cf. A276609, A276610.

Sequence in context: A092159 A322258 A141402 * A145900 A278676 A010298

Adjacent sequences: A276616 A276617 A276618 * A276620 A276621 A276622

Keyword

sign,tabl

Author

Antti Karttunen, Sep 13 2016

Status

approved