A186079 Index of Fibonacci numbers having last digit less than corresponding tribonacci number.

6, 7, 9, 12, 15, 18, 20, 22, 23, 24, 28, 30, 36, 37, 40, 41, 45, 46, 51, 53, 54, 55, 59, 60, 62, 67, 68, 69, 72, 75, 77, 79, 82, 85, 86, 90, 93, 99, 100, 102, 105, 108, 111, 113, 114, 116, 117, 120, 121, 124, 128, 129, 130, 133, 135, 139, 142, 144, 146, 147, 148, 150, 155, 161, 162, 164, 165, 167, 170, 173, 175, 177, 179, 180, 182, 183, 186, 192, 193, 195, 198, 199, 201, 202, 206, 208, 210, 217, 221, 223, 224, 225, 226, 227, 234, 237, 239, 240, 241, 242

Offset

1,1

Comments

Fib(a(n)) mod 10 < trib(a(n)) mod 10.

Links

Table of n, a(n) for n=1..100.

Example

a(5)=15 since Fib(15)=610 and trib(15)=2209 then 0<9

Crossrefs

Cf. A000045, A186077, A186078.

Sequence in context: A228499 A309961 A108595 * A372398 A022938 A048585

Adjacent sequences: A186076 A186077 A186078 * A186080 A186081 A186082

Keyword

nonn,base

Author

Carmine Suriano, Feb 11 2011

Status

approved