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A163255 An interspersion: the order array of A163254. 8
1, 3, 2, 7, 5, 4, 13, 10, 8, 6, 21, 17, 14, 11, 9, 31, 26, 22, 18, 15, 12, 43, 37, 32, 27, 23, 19, 16, 57, 50, 44, 38, 33, 28, 24, 20, 73, 65, 58, 51, 45, 39, 34, 29, 25, 91, 82, 74, 66, 59, 52, 46, 40, 35, 30, 111, 101, 92, 83, 75, 67, 60, 53, 47, 41, 36 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A permutation of the natural numbers.

Except for initial terms, rows 1 to 4 are A002061, A002522, A014206, A059100 and columns 1 to 4 are A002620, A024206, A014616, A004116.

This is the interspersion of the fractal sequence A167430; i.e., row n of this array consists of the numbers k such that n=A167430(k). - Clark Kimberling, Nov 03 2009

LINKS

Table of n, a(n) for n=1..66.

Clark Kimberling, Doubly interspersed sequences, double interspersions and fractal sequences, The Fibonacci Quarterly 48 (2010) 13-20.

EXAMPLE

Corner:

1....3....7...13

2....5...10...17

4....8...14...22

To obtain A163255 from A163254, replace each term of A163254 by its rank when all the terms of A163254 are arranged in increasing order.

CROSSREFS

Cf. A002061, A002522, A014206, A059100, A002620, A024206, A014616, A004116, A163253, A163254.

Cf. A167430. [From Clark Kimberling, Nov 03 2009]

Sequence in context: A097286 A278503 A283940 * A066884 A171429 A191448

Adjacent sequences:  A163252 A163253 A163254 * A163256 A163257 A163258

KEYWORD

nonn,tabl

AUTHOR

Clark Kimberling, Jul 24 2009

STATUS

approved

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Last modified July 28 02:53 EDT 2017. Contains 289866 sequences.