0,3

a(4) = 12 = (5 + 0 + 6 + 0 + 1).

Cf. A131321.

Adjacent sequences: A131319 A131320 A131321 this_sequence A131323 A131324 A131325

Sequence in context: A121482 A013498 A034758 this_sequence A036657 A047761 A026786

nonn

Gary W. Adamson (qntmpkt(AT)yahoo.com), Jun 28 2007