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A049069 Array T by antidiagonals: T(k,n)=k*n*2^(n-1)+1, n >= 0, k >= 1. 2
1, 1, 2, 1, 3, 5, 1, 4, 9, 13, 1, 5, 13, 25, 33, 1, 6, 17, 37, 65, 81, 1, 7, 21, 49, 97, 161, 193, 1, 8, 25, 61, 129, 241, 385, 449, 1, 9, 29, 73, 161, 321, 577, 897, 1025, 1, 10, 33, 85, 193, 401, 769, 1345, 2049, 2305, 1, 11, 37, 97, 225, 481, 961, 1793, 3073 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..63.

EXAMPLE

Antidiagonals: {1}; {1,2}; {1,3,5}; ...

PROG

(PARI) T(k, n)=k*n*2^(n-1)+1

CROSSREFS

Transpose of the array in A048472.

Row 1 = (1, 2, 5, 13, 33, ...) = A005183.

Row 2 = (1, 3, 9, 25, 65, ...) = A002064.

Cf. A049513.

Essentially the same as A049513.

Sequence in context: A175009 A297395 A297595 * A030237 A210557 A118243

Adjacent sequences:  A049066 A049067 A049068 * A049070 A049071 A049072

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane, Clark Kimberling, Michael Somos

STATUS

approved

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Last modified October 19 22:00 EDT 2018. Contains 316378 sequences. (Running on oeis4.)