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A134562 Array T by antidiagonals: T(n,k) = k-th number whose formal base-3 representation has exactly n terms. ("Formal" means that all the nonzero coefficients are 1's.). 0
1, 3, 2, 9, 4, 5, 27, 6, 7, 8, 81, 10, 11, 14, 17, 243, 12, 13, 16, 23, 26, 729, 18, 15, 20, 25, 44, 53, 2187, 28, 19, 22, 35, 50, 71 (list; table; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

A permutation of the natural numbers. Except for initial terms in some cases, (Row 1) = A000244 (Row 2) = A055235 (Col 1) = A062318 (= A112346?) For analogous base-2 array, see A067576.

EXAMPLE

11 = 9 + 1 + 1 is the 3rd largest number (after 5 and 7) that has

a 3-term formal base-3 representation.

Northwest corner:

1 3 9 27 81

2 4 6 10 12

5 7 11 13 15

8 14 16 20 22

CROSSREFS

Cf. A067576.

Sequence in context: A169862 A192492 A104005 * A090639 A178774 A182652

Adjacent sequences:  A134559 A134560 A134561 * A134563 A134564 A134565

KEYWORD

nonn,tabl

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu), Nov 01 2007

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Last modified February 16 04:47 EST 2012. Contains 205860 sequences.