id:A097713 - OEIS Search Results

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Column 1 of triangle A097712.

+0
2

1, 3, 8, 25, 111, 809, 10360, 236952, 9708797, 714862984, 95000655195, 22902964060238, 10070812803900694, 8120691251242651341, 12070960239863869828931, 33238610095183531376362138 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Equals the partial sums of A016121; the row sums of triangle A097712 equals A016121. A016121 equals the number of sequences (a_1, a_2, ..., a_n) of length n with a_1 = 1 satisfying a_i <= a_{i+1} <= 2*a_i.`
	CROSSREFS	`Cf. A097712, A016121.` `Sequence in context: A012408 A051403 A004205 this_sequence A009392 A130648 A061812` `Adjacent sequences: A097710 A097711 A097712 this_sequence A097714 A097715 A097716`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Aug 24 2004`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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