A121027 Multiples of 7 containing a 7 in their decimal representation.

7, 70, 77, 147, 175, 217, 273, 287, 357, 371, 378, 427, 476, 497, 567, 574, 637, 672, 679, 700, 707, 714, 721, 728, 735, 742, 749, 756, 763, 770, 777, 784, 791, 798, 847, 875, 917, 973, 987, 1057, 1071, 1078, 1127, 1176, 1197, 1267, 1274, 1337, 1372, 1379

Offset

1,1

Links

Paolo Xausa, Table of n, a(n) for n = 1..10000

Index entries for 10-automatic sequences.

Formula

a(n) ~ 7n. - Charles R Greathouse IV, Feb 12 2017

Mathematica

Select[7*Range[500], MemberQ[IntegerDigits[#], 7] &] (* Paolo Xausa, Feb 25 2024 *)

Prog

(PARI) is(n)=n%7==0 && setsearch(Set(digits(n)), 7) \\ Charles R Greathouse IV, Feb 12 2017

Crossrefs

Intersection of A008589 and A011537.

Cf. A121041, A011531, A121022, A121023, A121024, A121025, A121026, A121028, A121029, A121030, A121031, A121032, A121033, A121034, A121035, A121036, A121037, A121038, A121039, A121040.

Sequence in context: A077683 A082797 A216994 * A062901 A204094 A061476

Adjacent sequences: A121024 A121025 A121026 * A121028 A121029 A121030

Keyword

nonn,base,easy

Author

Reinhard Zumkeller, Jul 21 2006

Extensions

Typo in comment fixed by Reinhard Zumkeller, May 01 2011

Status

approved