A257252 Transpose of square array A257251.

2, 6, 2, 20, 6, 2, 42, 10, 6, 2, 110, 28, 20, 6, 2, 156, 22, 14, 10, 6, 2, 272, 52, 44, 28, 20, 6, 2, 342, 34, 26, 22, 14, 10, 6, 2, 506, 76, 68, 52, 44, 28, 20, 6, 2, 812, 138, 114, 102, 78, 66, 42, 10, 6, 2, 930, 58, 46, 38, 34, 26, 22, 14, 20, 6, 2, 1332, 186, 174, 138, 114, 102, 78, 66, 42, 10, 6, 2

Offset

1,1

Comments

See A257251.

Links

Antti Karttunen, Table of n, a(n) for n = 1..3321; the first 81 antidiagonals of the array

Example

The top left corner of the array:
  2, 6, 20, 42, 110, 156, 272, 342, 506, 812, 930, 1332
  2, 6, 10, 28,  22,  52,  34,  76, 138,  58, 186,  148
  2, 6, 20, 14,  44,  26,  68, 114,  46, 174, 124,   74
  2, 6, 10, 28,  22,  52, 102,  38, 138, 116,  62,  148
  2, 6, 20, 14,  44,  78,  34, 114,  92,  58, 124,  222
  2, 6, 10, 28,  66,  26, 102,  76,  46, 116, 186,  222
  2, 6, 20, 42,  22,  78,  68,  38,  92, 174, 186,   74
  2, 6, 10, 14,  66,  52,  34,  76, 138, 174,  62,  222
  2, 6, 20, 42,  44,  26,  68, 114, 138,  58, 186,  148
  2, 6, 10, 28,  22,  52, 102, 114,  46, 174, 124,   74
  2, 6, 20, 14,  44,  78, 102,  38, 138, 116,  62,  222
  2, 6, 10, 28,  66,  78,  34, 114,  92,  58, 186,  148
  2, 6, 20, 14,  66,  26, 102,  76,  46, 174, 124,  222
  2, 6, 10, 28,  22,  78,  68,  38, 138, 116, 186,  296
  2, 6, 20, 42,  66,  52,  34, 114,  92, 174, 248,  148
  2, 6, 10, 14,  44,  26, 102,  76, 138, 232, 124,   74
  ...

Prog

(Scheme)
(define (A257252 n) (A257251bi (A004736 n) (A002260 n))) ;; Other code as in A257251.

Crossrefs

Transpose: A257251.

Row 1: A036689.

Cf. also A083140, A257254 (same array but with terms divided by 2).

Sequence in context: A322312 A174857 A248568 * A327171 A008556 A254638

Adjacent sequences: A257249 A257250 A257251 * A257253 A257254 A257255

Keyword

nonn,tabl

Author

Antti Karttunen, Apr 29 2015

Status

approved