

A230450


"Comma sum" sequence: a(n+1)a(n) = rightmost digit of a(n) + leftmost digit of a(n+1), use smallest possible solution; starting with 396.


4



396, 406, 416, 426, 436, 446, 456, 466, 476, 486, 496, 507, 519, 533, 541, 547, 559, 573, 581, 587, 599, 614, 624, 634, 644, 654, 664, 674, 684, 694, 705, 717, 731, 739, 755, 767, 781, 789, 806, 820, 828, 844, 856, 870, 878, 894, 907, 923, 935, 949, 967
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OFFSET

1,1


COMMENTS

The starting value 396 is the first which seems to lead to an infinite sequence; most smaller starting values "converge" to a sequence ending in 989, which has no successor. See A230288 for further discussion.


LINKS

Table of n, a(n) for n=1..51.
Eric Angelini, Comma Sums
Eric Angelini, Comma Sums [Cached copy, with permission]


PROG

(PARI) A230288_vec([396], 200)


CROSSREFS

Cf. A230288, A230452, A230453.
Sequence in context: A278605 A278269 A278606 * A247989 A126078 A275171
Adjacent sequences: A230447 A230448 A230449 * A230451 A230452 A230453


KEYWORD

nonn,base


AUTHOR

M. F. Hasler, Oct 19 2013


STATUS

approved



