A079653 - OEIS

A079653

Triangular numbers using only the curved digits 0, 3, 6, 8 and 9.

0, 3, 6, 36, 66, 300, 630, 666, 903, 990, 3003, 6903, 33930, 39060, 39903, 63903, 66066, 69006, 93096, 306936, 333336, 339900, 600060, 609960, 630003, 669903, 690900, 833986, 930930, 936396, 963966, 3036880, 3069003, 3083886, 3306306, 3689686, 3966336, 3988900

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OFFSET

1,2

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

MATHEMATICA

t[n_] := n*(n + 1)/2; t /@ Select[Range[0, 10000], AllTrue[IntegerDigits[t[#]], MemberQ[{0, 3, 6, 8 , 9}, #1] &] &] (* Amiram Eldar, Aug 18 2020 *)

CROSSREFS

Intersection of A000217 and A072960.

Sequence in context: A106128 A119186 A119115 * A119063 A119154 A119194

Adjacent sequences: A079650 A079651 A079652 * A079654 A079655 A079656

KEYWORD

base,nonn

AUTHOR

Shyam Sunder Gupta, Jan 23 2003

EXTENSIONS

a(1) = 0 and more terms from Amiram Eldar, Aug 18 2020

STATUS

approved