id:A056578 - OEIS Search Results

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1+2n+3n^2+4n^3.

+0
15

1, 10, 49, 142, 313, 586, 985, 1534, 2257, 3178, 4321, 5710, 7369, 9322, 11593, 14206, 17185, 20554, 24337, 28558, 33241, 38410, 44089, 50302, 57073, 64426, 72385, 80974, 90217, 100138, 110761, 122110, 134209, 147082, 160753, 175246 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n) =(A053699(n+1)-A053699(n-1))/2-4n-1`
	EXAMPLE	`For n>4 this is 4321 translated from base n to base 10`
	CROSSREFS	`Note: 1+2x+3x^2+4x^3 is derivative of 1+x+x^2+x^3+x^4, i.e. A053699. Cf. A000012, A005408, A056109, A056579.` `Sequence in context: A048698 A045770 A035237 this_sequence A051947 A061861 A036786` `Adjacent sequences: A056575 A056576 A056577 this_sequence A056579 A056580 A056581`
	KEYWORD	`easy,nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Jun 29 2000`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research