American soul in less than 237 pages/years (an equation in hunt for the Great American Novel(la))

1776 = Y= 1; 2013 = Y = 237

Y= 74
pp. = 180
The Scarlet Letter / Hawthorne

Y=118
pp. = 128
Puddn'head Wilson / Twain

Y = 104
pp. = 176
Washington Square / James

Y =137
pp. = 128
O Pioneers! / Cather

Y = 149
pp. = 218
The Great Gatsby / Fitzgerald

Y = 163
pp. = 192
The Day of the Locust / West

Y = 175
pp. = 214
Catcher in the Rye / Salinger

Y= 176
pp. = 224
The Natural / Malamud

Y = 180
pp. = 128
Seize the day / Bellow

Y = 188
pp. = 96
77 Dream Songs / Berryman

Y= 194
pp. = 190
Desperate characters / Fox

Y = 199
pp. = 236
Ragtime / Doctorow

Y= 204
pp. = 219
Housekeeping / Robinson

Y = 206
pp. = 224
Dead-eye Dick / Vonnegut

Y = 208
pp. = 176
Democracy / Didion

Y = 212
pp.= 226
Tracks / Erdrich

Y = 218
pp. = 160
Black Water / Oates