A182478 Numbers that can be truncated in base 10 such that the sum of the factorials of the truncations equals that number.

1, 2, 145, 40585, 6402374184741226, 121645100891988866, 121666023198802103, 121666023198802144, 2432902008177819519, 2432902008217006118, 2432902008656812499, 4872206390059820318

Offset: 1

Author

Bodo Zinser, May 01 2012

Keywords

• nonn
• base
• hard

Examples

			a(5)=6402374184741226=6!+4!+(02)!+3!+7!+4!+18!+4!+7!+4!+12!+2!+6!
a(6): 2-digit-truncations are 12,10,19
a(7): 2-digit-truncs are 16,19
a(8): 2-digit-truncs are 16,19
a(9): 2-digit-trunc is 20
a(10): 2-digit-truncs are 20,11
a(11): 2-digit-truncs are 20,12
a(12): 2-digit-truncs are 20,20,18
		

Crossrefs

A014080 is a subsequence.