A202387 Squarefree Smith numbers, cf. A006753.

22, 58, 85, 94, 166, 202, 265, 274, 319, 346, 355, 382, 391, 438, 454, 483, 517, 526, 535, 562, 627, 634, 645, 654, 663, 690, 706, 762, 778, 861, 895, 913, 915, 922, 958, 985, 1086, 1111, 1165, 1219, 1255, 1282, 1507, 1581, 1626, 1633, 1642, 1678, 1795, 1822

Offset

1,1

Comments

Intersection of A006753 and A005117;

also squarefree hoax numbers: intersection of A019506 and A005117;

squarefree composite numbers m such that sum of digits of m = sum of digits of all prime factors of m.

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Eric Weisstein's World of Mathematics, Smith Number

Eric Weisstein's World of Mathematics, Hoax Number

Wikipedia, Smith number

Prog

(Haskell)
a202387 n = a202387_list !! (n-1)
a202387_list = [x | x <- a120944_list,
                    a007953 x == sum (map a007953 (a027746_row x))]

Crossrefs

Cf. A007953, A027746, A120944.

Sequence in context: A058097 A131878 A019506 * A044124 A044505 A156797

Adjacent sequences: A202384 A202385 A202386 * A202388 A202389 A202390

Keyword

nonn,base

Author

Reinhard Zumkeller, Dec 19 2011

Status

approved