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A182274
Starting with 1, the smallest number not yet in the sequence such that the sum of every pair of adjacent digits in the sequence sum to a square number.
0
1, 3, 6, 31, 8, 10, 4, 5, 40, 9, 7, 2, 22, 27, 90, 13, 18, 81, 36, 310, 45, 400, 97, 222, 72, 79, 722, 227, 272, 279, 727, 900, 100, 101, 88, 104, 54, 540, 109, 790, 131, 313, 63, 136, 318, 181, 363, 188, 810, 401, 813, 631, 818, 881, 888, 1000, 404, 545, 409
OFFSET
1,2
CROSSREFS
Sequence in context: A331661 A117805 A154135 * A103091 A186940 A376311
KEYWORD
nonn,base,easy
AUTHOR
Jim Nastos, Apr 22 2012
STATUS
approved