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A102119
Iccanobirt numbers (9 of 15): a(n) = R(a(n-1) + a(n-2) + R(a(n-3))), where R is the digit reversal function A004086.
6
0, 0, 1, 1, 2, 4, 7, 31, 24, 26, 36, 401, 994, 8541, 9369, 90481, 803101, 122309, 918349, 6691411, 1892158, 8837259, 38317811, 15086655, 45813926, 46917727, 407993841, 224348715, 25411507, 629951893, 2286023711, 6507846892, 9250302919
OFFSET
0,5
COMMENTS
Digit reversal variation of tribonacci numbers A000073.
Inspired by Iccanobif numbers: A001129, A014258-A014260.
FORMULA
a(n) = A004086(A102111(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]+a[n-2]+R[a[n-3]]]; Table[a[n], {n, 0, 40}]
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
STATUS
approved