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

Author

Ross Millikan, Dec 27 2012

Keywords

• base
• nonn

Examples

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

Links

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

Programs

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)