A277809 Transpose of square array A277810.

2, 3, 6, 30, 15, 10, 5, 14, 21, 210, 70, 35, 462, 1155, 22, 105, 330, 55, 910, 39, 858, 42, 33, 2002, 5005, 72930, 3315, 1870, 7, 770, 2145, 714, 85, 2926, 5187, 9699690, 154, 77, 390, 3927, 248710, 11305, 238602, 111546435, 46, 231, 546, 91, 3094, 440895, 152490, 21505, 93763670, 87, 4002, 2310, 1365, 170170, 17017, 114114, 9867, 2306486, 1078282205, 620310, 13485, 7130

Offset

1,1

Comments

See A277810.

Links

Antti Karttunen, Table of n, a(n) for n = 1..1275; the first 50 antidiagonals of the array

Formula

A(r,c) = A019565(A277819(r,c)).

Example

The top left corner of the array:
     2,    3,     30,     5,      70,     105,     42,     7,       154
     6,   15,     14,    35,     330,      33,    770,    77,       546
    10,   21,    462,    55,    2002,    2145,    390,    91,    170170
   210, 1155,    910,  5005,     714,    3927,   3094, 17017,       570
    22,   39,  72930,    85,  248710,  440895, 114114,   133,      6118
   858, 3315,   2926, 11305,  152490,    9867, 520030, 33649,    254562
  1870, 5187, 238602, 21505, 2306486, 1870935, 162690, 50141, 357505330

Prog

(Scheme) (define (A277809 n) (A277810bi (A004736 n) (A002260 n))) ;; Code for A277810bi given in A277810.

Crossrefs

Transpose: A277810.

The topmost row: A277811, the leftmost column: A123098.

Permutation of squarefree numbers (A005117) after their initial term 1.

Cf. A019565, A277819.

Sequence in context: A348867 A018318 A368209 * A051717 A330030 A192441

Adjacent sequences: A277806 A277807 A277808 * A277810 A277811 A277812

Keyword

nonn,tabl

Author

Antti Karttunen, Nov 01 2016

Status

approved