id:A107681 - OEIS Search Results

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Repeat(first 2^k numbers with no 2 in ternary representation) for k>0.

+0
4

0, 1, 0, 1, 3, 4, 0, 1, 3, 4, 9, 10, 12, 13, 0, 1, 3, 4, 9, 10, 12, 13, 27, 28, 30, 31, 36, 37, 39, 4, 0, 0, 1, 3, 4, 9, 10, 12, 13, 27, 28, 30, 31, 36, 37, 39, 40, 81, 82, 84, 85, 90, 91, 93, 94, 108, 109, 111, 112, 117, 118, 120, 121, 0, 1, 3, 4, 9, 10, 12, 13, 27, 28, 30, 31, 36, 37 (list; graph; listen)

	OFFSET	`1,5`
	COMMENT	`let A032924(n) = Sum(d(i)3^i: 0<d(i)<3, 0<=i<L)` `then .... a(n) = Sum((d(i)-1)3^i: 0<=i<L);` `A032924(n) = A107680(n) + a(n);` `A081604 (a(n)) <= A081604(A107680(n)) = A081604(A032924(n)) = A000523(n+1).`
	FORMULA	`a(n) = A005836(A062050(n+1)).`
	EXAMPLE	`A032924(177) = A107680(177) + a(177),` `....... 1420 = ....... 1093 + 327,` `.. '1221121' = ... '1111111'+ '110010',` `............ = . A003462(7) + A005836(51).`
	CROSSREFS	`Cf. A007089.` `Sequence in context: A061353 A016653 A096088 this_sequence A021298 A073234 A123685` `Adjacent sequences: A107678 A107679 A107680 this_sequence A107682 A107683 A107684`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 20 2005`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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