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A266577 Table read by antidiagonals (from upper right to lower left): T(i,j) = ((2^(i+1) + 1)^(j-1) + 1)/2. 1
1, 3, 1, 13, 5, 1, 63, 41, 9, 1, 313, 365, 145, 17, 1, 1563, 3281, 2457, 545, 33, 1, 7813, 29525, 41761, 17969, 2113, 65, 1, 39063, 265721, 709925, 592961, 137313, 8321, 129, 1, 195313, 2391485, 12068785, 19567697, 8925313, 1073345, 33025, 257, 1, 976563, 21523361, 205169337, 645733985, 580145313, 138461441, 8487297, 131585, 513, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..55.

EXAMPLE

The table begins:

  1  3  13 ...

  1  5  41 ...

  1  9 145 ...

  ...

PROG

(PARI) tabl(n) = matrix(n, n, i, j, ((2^(i+1)+1)^(j-1)+1)/2); \\ Michel Marcus, Jan 02 2016

CROSSREFS

Cf. A034478.

Sequence in context: A297898 A322384 A113139 * A143411 A096773 A118384

Adjacent sequences:  A266574 A266575 A266576 * A266578 A266579 A266580

KEYWORD

tabl,nonn

AUTHOR

Ahmad J. Masad, Jan 01 2016

STATUS

approved

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Last modified October 19 04:40 EDT 2019. Contains 328211 sequences. (Running on oeis4.)