A187829 Numbers that when converted to hexadecimal and the letters are replaced by base 10 equivalents, result in the same number.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 4494410, 4494411, 4494412, 4494413, 4494414, 4494415, 4715360, 4715361, 4715362, 4715363, 4715364, 4715365, 4715366, 4715367, 4715368, 4715369, 5660810, 5660811, 5660812, 5660813, 5660814, 5660815

Offset

1,2

Links

Ross Millikan, Table of n, a(n) for n = 1..85

Example

4494410 in hex is 44944A.  Replacing A in the string results in 4494410.

Prog

(Python)
def hexmatch(inp):
    h=hex(inp)
    ho=''
    for i in h[2:]:
        if i=='a': ho+='10'
        elif i=='b' :ho+='11'
        elif i=='c' :ho+='12'
        elif i=='d' :ho+='13'
        elif i=='e' :ho+='14'
        elif i=='f' :ho+='15'
        else: ho +=i
    return ho
def loop(start, stop):
    rec=100000000
    for i in range(start, stop):
        val=int(hexmatch(i))
        diff=val-i
        if diff==0: print(i, end=', ')
loop(1, 5660816)

Crossrefs

Sequence in context: A044917 A246337 A161953 * A356974 A105427 A247160

Adjacent sequences: A187826 A187827 A187828 * A187830 A187831 A187832

Keyword

base,nonn

Author

Ross Millikan, Dec 27 2012

Status

approved