id:A065760 - OEIS Search Results

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Concatenation of increasing number of alternating digits in base 2, starting with 1.

+0
3

1, 4, 39, 624, 19999, 1279936, 163831935, 41940975360, 21473779384831, 21989150090066944, 45033779384457103359, 184458360358736295358464, 1511082888058767731576545279, 24757582037954850514150117851136 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`a(5) = 19999 is formed by appending 1 five times (11111) to a(4) in base 2: 100111000011111.`
	CROSSREFS	`Decimal version of A065447. Cf. A065761.` `Sequence in context: A068187 A024055 A066399 this_sequence A132612 A129463 A136653` `Adjacent sequences: A065757 A065758 A065759 this_sequence A065761 A065762 A065763`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Lior Manor (lior.manor(AT)gmail.com) Nov 18 2001`

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Last modified November 30 22:12 EST 2008. Contains 150989 sequences.

AT&T Labs Research