id:A069964 - OEIS Search Results

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(Sum of digits of n)^4 - (sum of digits^4 of n).

+0
1

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 64, 174, 368, 670, 1104, 1694, 2464, 3438, 0, 64, 224, 528, 1024, 1760, 2784, 4144, 5888, 8064, 0, 174, 528, 1134, 2064, 3390, 5184, 7518, 10464, 14094, 0, 368, 1024, 2064, 3584, 5680, 8448, 11984, 16384, 21744, 0, 670 (list; graph; listen)

	OFFSET	`0,12`
	COMMENT	`a(n) = 0 iff n is a single digit number or is a power of ten times a single digit number.`
	MATHEMATICA	`f[n_] := Plus @@ IntegerDigits[n]^4 - Plus @@ (IntegerDigits[n]^4); Table[ f[n], {n, 0, 100}]`
	CROSSREFS	`Sequence in context: A044533 A050492 A050396 this_sequence A074354 A124892 A126401` `Adjacent sequences: A069961 A069962 A069963 this_sequence A069965 A069966 A069967`
	KEYWORD	`nonn,base,easy`
	AUTHOR	`njas and Robert G. Wilson v (rgwv(AT)rgwv.com), May 04 2002`

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

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