A195419 Roman Friedman numbers

8, 18, 27, 28, 33, 34, 36, 37, 38, 44, 46, 47, 48, 49, 57, 58, 68, 75, 76, 77, 78, 81, 82, 83, 85, 86, 87, 88, 89, 94, 96, 97, 98, 99

Offset

1,1

Comments

All numbers ending in 8 are Roman Friedman numbers.

Links

Table of n, a(n) for n=1..34.

Erich Friedman, Problem of the Month August 2000

Example

8 = VIII = IV * II, 18 = XVIII = IV * II + X. - Bo Gyu Jeong, Jun 30 2012

Crossrefs

Sequence in context: A257404 A190508 A298161 * A110188 A069236 A187101

Adjacent sequences: A195416 A195417 A195418 * A195420 A195421 A195422

Keyword

nonn,base

Author

Kausthub Gudipati, Sep 18 2011

Status

approved