id:A102120 - OEIS Search Results

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Iccanobirt numbers (10 of 15): a(n) = R(a(n-1) + R(a(n-2)) + a(n-3)), where R is the digit reversal function A004086.

+0
6

0, 0, 1, 1, 2, 4, 7, 31, 24, 44, 711, 977, 8311, 1089, 4023, 53122, 51475, 33677, 412441, 945145, 6303211, 1027527, 8075903, 51363612, 74868455, 376085401, 68539284, 214889742, 927862936, 2360934421, 2982905123, 1968515515, 8282454457 (list; graph; listen)

	OFFSET	`0,5`
	COMMENT	`Digit reversal variation of Tribonacci numbers A000073.` `Inspired by Iccanobif numbers: A001129, A014258-A014260.`
	FORMULA	`a(n) = A004086(A102112(n)).`
	MATHEMATICA	`R[n_]:=FromDigits[Reverse[IntegerDigits[n]]]; Clear[a]; a[0]=0; a[1]=0; a[2]=1; a [n_]:=a[n]=R[a[n-1]+R[a[n-2]]+a[n-3]]; Table[a[n], {n, 0, 40}]`
	CROSSREFS	`Cf. A102111-A102125.` `Sequence in context: A102118 A102119 A102121 this_sequence A102122 A102123 A102125` `Adjacent sequences: A102117 A102118 A102119 this_sequence A102121 A102122 A102123`
	KEYWORD	`nonn,base,easy`
	AUTHOR	`Jonathan Vos Post (jvospost3(AT)gmail.com) and Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 30 2004`

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Last modified November 30 22:12 EST 2008. Contains 150989 sequences.

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