



0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 8, 9, 10, 11, 12, 12, 12, 13, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 17, 18, 19, 19, 19, 19, 19, 19, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 23, 24, 25, 25, 25, 26, 26, 27
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,11


LINKS



EXAMPLE

a(25)=6 since A081227[1..25] has 6 ones and 19 zeros.


MAPLE

digcomp := proc(A, B) local a, b, crit, f; description "returns the digits that 'A' and 'B' have in common; if a third argument is given and it is 'sum' then the sum of the common digits is returned, else if it is 'num' then the number of common digits is returned."; if nargs>2 then crit := args[3] else crit := NULL fi; a := convert(`if`(A=0, [0], (convert(A, base, 10))), set); b := convert(`if`(B=0, [0], (convert(B, base, 10))), set); f := a intersect b; if crit=sum then return `if`(nops(f)>0, `+`(op(f)), 1) elif crit=num then return nops(f) else return f; fi; end proc; ListTools[PartialSums]([seq(digcomp(i, ithprime(i), num), i=1..200)]);


CROSSREFS



KEYWORD

base,easy,nonn


AUTHOR

Francois Jooste (pin(AT)myway.com), Mar 11 2003


STATUS

approved



