A337100 Numbers that have at least 4 different representations as the product of a number and of its decimal digits.

0, 549504, 1578092544, 12276847296, 28961412480, 35998381440, 87012926784, 118082893824, 259456659840, 335449175040, 397315715328, 579305502720, 672777778176, 712539265536, 741360356352, 863562591360, 1138944651264, 1264664088576, 1276070713344, 1300488037632

Offset

1,2

Comments

Subsequence of A337054. a(61) = 20150684596224 is the smallest positive number with 5 representations. Other terms with 5 representations include 242374224347136, 1461825635235840, 1761950567301120, 3194185120277760, 3415710732779520.

Links

Chai Wah Wu, Table of n, a(n) for n = 1..113

Example

a(3) = 12276847296 = 676634*(6*7*6*6*3*4) = 773296*(7*7*3*2*9*6) = 2368219*(2*3*6*8*2*1*9) = 12179412*(1*2*1*7*9*4*1*2).

Crossrefs

Cf. A098736, A336826, A336876, A336944, A337051, A337054.

Sequence in context: A251035 A236827 A337054 * A077456 A188486 A204571

Adjacent sequences: A337097 A337098 A337099 * A337101 A337102 A337103

Keyword

nonn,base

Author

Chai Wah Wu, Aug 15 2020

Status

approved