A116319 n times n+7 gives the concatenation of two numbers m and m+4.

77, 4328, 5666, 9365, 41505566065992219342, 44035313091289689595, 46429818586950933764, 48959565612248404017, 51040434387751595977, 53570181413049066230, 55964686908710310399, 58494433934007780652

Offset

1,1

Links

Table of n, a(n) for n=1..12.

Example

9365 * 9372 = 8776//8780, where // denotes concatenation.

Crossrefs

Cf. A116133, A116311, A116318, A116320, A116326.

Sequence in context: A004378 A049658 A217455 * A217962 A180837 A361112

Adjacent sequences: A116316 A116317 A116318 * A116320 A116321 A116322

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved