id:A033662 - OEIS Search Results

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Possible digital sums of Smith numbers (conjectural).

+0
2

4, 9, 13, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Numbers not in sequence are not digital sums of Smith numbers. Numbers in sequence are almost certainly so.`
	FORMULA	`a(n) in {4, 9, 13, 15} or a(n) >= 17`
	CROSSREFS	`Cf. A006753.` `Sequence in context: A066588 A135740 A010412 this_sequence A136640 A068949 A141000` `Adjacent sequences: A033659 A033660 A033661 this_sequence A033663 A033664 A033665`
	KEYWORD	`base,nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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